/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/Primes.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 17:15:35,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 17:15:35,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 17:15:35,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 17:15:35,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 17:15:35,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 17:15:35,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 17:15:35,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 17:15:35,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 17:15:35,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 17:15:36,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 17:15:36,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 17:15:36,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 17:15:36,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 17:15:36,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 17:15:36,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 17:15:36,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 17:15:36,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 17:15:36,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 17:15:36,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 17:15:36,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 17:15:36,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 17:15:36,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 17:15:36,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 17:15:36,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 17:15:36,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 17:15:36,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 17:15:36,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 17:15:36,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 17:15:36,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 17:15:36,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 17:15:36,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 17:15:36,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 17:15:36,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 17:15:36,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 17:15:36,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 17:15:36,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 17:15:36,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 17:15:36,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 17:15:36,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 17:15:36,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 17:15:36,112 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 17:15:36,143 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 17:15:36,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 17:15:36,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 17:15:36,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 17:15:36,146 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 17:15:36,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 17:15:36,146 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 17:15:36,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 17:15:36,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 17:15:36,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 17:15:36,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 17:15:36,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 17:15:36,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 17:15:36,147 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 17:15:36,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 17:15:36,148 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 17:15:36,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 17:15:36,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 17:15:36,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 17:15:36,150 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 17:15:36,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 17:15:36,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:15:36,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 17:15:36,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 17:15:36,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 17:15:36,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 17:15:36,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 17:15:36,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 17:15:36,153 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 17:15:36,153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 17:15:36,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 17:15:36,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 17:15:36,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 17:15:36,592 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 17:15:36,593 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 17:15:36,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Primes.c [2020-10-28 17:15:36,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fe29f411/b1a4d7d00d674ed295b8138f5b32aa9d/FLAGa99193861 [2020-10-28 17:15:37,226 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 17:15:37,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Primes.c [2020-10-28 17:15:37,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fe29f411/b1a4d7d00d674ed295b8138f5b32aa9d/FLAGa99193861 [2020-10-28 17:15:37,552 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3fe29f411/b1a4d7d00d674ed295b8138f5b32aa9d [2020-10-28 17:15:37,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 17:15:37,565 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 17:15:37,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 17:15:37,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 17:15:37,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 17:15:37,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:15:37" (1/1) ... [2020-10-28 17:15:37,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e15e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:37, skipping insertion in model container [2020-10-28 17:15:37,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:15:37" (1/1) ... [2020-10-28 17:15:37,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 17:15:37,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 17:15:37,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:15:37,830 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 17:15:37,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:15:37,884 INFO L208 MainTranslator]: Completed translation [2020-10-28 17:15:37,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:37 WrapperNode [2020-10-28 17:15:37,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 17:15:37,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 17:15:37,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 17:15:37,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 17:15:37,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:37" (1/1) ... [2020-10-28 17:15:37,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:37" (1/1) ... [2020-10-28 17:15:37,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:37" (1/1) ... [2020-10-28 17:15:37,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:37" (1/1) ... [2020-10-28 17:15:37,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:37" (1/1) ... [2020-10-28 17:15:37,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:37" (1/1) ... [2020-10-28 17:15:37,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:37" (1/1) ... [2020-10-28 17:15:37,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 17:15:37,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 17:15:37,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 17:15:37,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 17:15:37,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:37" (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 17:15:38,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 17:15:38,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 17:15:38,092 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 17:15:38,093 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2020-10-28 17:15:38,093 INFO L138 BoogieDeclarations]: Found implementation of procedure multiple_of [2020-10-28 17:15:38,094 INFO L138 BoogieDeclarations]: Found implementation of procedure is_prime [2020-10-28 17:15:38,094 INFO L138 BoogieDeclarations]: Found implementation of procedure is_prime_ [2020-10-28 17:15:38,094 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 17:15:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 17:15:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 17:15:38,096 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 17:15:38,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 17:15:38,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 17:15:38,096 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2020-10-28 17:15:38,096 INFO L130 BoogieDeclarations]: Found specification of procedure multiple_of [2020-10-28 17:15:38,097 INFO L130 BoogieDeclarations]: Found specification of procedure is_prime_ [2020-10-28 17:15:38,098 INFO L130 BoogieDeclarations]: Found specification of procedure is_prime [2020-10-28 17:15:38,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 17:15:38,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 17:15:38,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 17:15:38,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 17:15:38,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 17:15:38,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 17:15:38,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 17:15:38,649 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 17:15:38,650 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 17:15:38,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:15:38 BoogieIcfgContainer [2020-10-28 17:15:38,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 17:15:38,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 17:15:38,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 17:15:38,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 17:15:38,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:15:37" (1/3) ... [2020-10-28 17:15:38,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56079ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:15:38, skipping insertion in model container [2020-10-28 17:15:38,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:15:37" (2/3) ... [2020-10-28 17:15:38,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56079ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:15:38, skipping insertion in model container [2020-10-28 17:15:38,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:15:38" (3/3) ... [2020-10-28 17:15:38,663 INFO L111 eAbstractionObserver]: Analyzing ICFG Primes.c [2020-10-28 17:15:38,675 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 17:15:38,685 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 17:15:38,698 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 17:15:38,722 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 17:15:38,723 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 17:15:38,723 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 17:15:38,723 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 17:15:38,723 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 17:15:38,723 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 17:15:38,723 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 17:15:38,723 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 17:15:38,741 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-10-28 17:15:38,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-28 17:15:38,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:15:38,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:15:38,750 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:15:38,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:15:38,756 INFO L82 PathProgramCache]: Analyzing trace with hash -945505817, now seen corresponding path program 1 times [2020-10-28 17:15:38,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:15:38,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118906496] [2020-10-28 17:15:38,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:15:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:38,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:39,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:39,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:39,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-28 17:15:39,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:15:39,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-10-28 17:15:39,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:39,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:39,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:15:39,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-28 17:15:39,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 17:15:39,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:15:39,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:15:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:39,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:39,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:39,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:15:39,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:39,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:15:39,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:39,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:39,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:39,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:39,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:39,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:39,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:15:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:39,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:39,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:39,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 17:15:39,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:39,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:15:39,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:39,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:39,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:39,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:39,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:39,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:15:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:39,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:39,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:39,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:15:39,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:39,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:15:39,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:39,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:39,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:39,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:39,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:39,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:15:39,811 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 17:15:39,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118906496] [2020-10-28 17:15:39,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:15:39,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 17:15:39,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004807826] [2020-10-28 17:15:39,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 17:15:39,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:15:39,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 17:15:39,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 17:15:39,842 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 4 states. [2020-10-28 17:15:40,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:15:40,296 INFO L93 Difference]: Finished difference Result 73 states and 96 transitions. [2020-10-28 17:15:40,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-28 17:15:40,298 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-10-28 17:15:40,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:15:40,308 INFO L225 Difference]: With dead ends: 73 [2020-10-28 17:15:40,308 INFO L226 Difference]: Without dead ends: 58 [2020-10-28 17:15:40,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 17:15:40,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-28 17:15:40,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-10-28 17:15:40,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-28 17:15:40,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 75 transitions. [2020-10-28 17:15:40,366 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 75 transitions. Word has length 24 [2020-10-28 17:15:40,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:15:40,368 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 75 transitions. [2020-10-28 17:15:40,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 17:15:40,368 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 75 transitions. [2020-10-28 17:15:40,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-28 17:15:40,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:15:40,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:15:40,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 17:15:40,373 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:15:40,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:15:40,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1112270442, now seen corresponding path program 1 times [2020-10-28 17:15:40,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:15:40,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430208817] [2020-10-28 17:15:40,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:15:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:40,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:40,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:40,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:40,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:41,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:41,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 17:15:41,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:15:41,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1455 [2020-10-28 17:15:41,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:41,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:41,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:15:41,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 17:15:41,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:15:41,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:41,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:15:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:41,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:41,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:41,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:15:41,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:41,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:15:41,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:41,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:41,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:41,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:41,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:41,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:41,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:15:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:42,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:42,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:42,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 17:15:42,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:42,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:15:42,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:42,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:15:42,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:42,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:15:42,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:42,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:15:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:42,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:42,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:42,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:15:42,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:42,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:15:42,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:42,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:42,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:42,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:42,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:42,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:42,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 17:15:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:42,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:42,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:42,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:15:42,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:42,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:15:42,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:42,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:42,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:15:42,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:42,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:15:42,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:42,070 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 17:15:42,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430208817] [2020-10-28 17:15:42,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:15:42,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 17:15:42,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724762036] [2020-10-28 17:15:42,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 17:15:42,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:15:42,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 17:15:42,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-28 17:15:42,077 INFO L87 Difference]: Start difference. First operand 58 states and 75 transitions. Second operand 7 states. [2020-10-28 17:15:42,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:15:42,870 INFO L93 Difference]: Finished difference Result 65 states and 83 transitions. [2020-10-28 17:15:42,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 17:15:42,872 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-10-28 17:15:42,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:15:42,877 INFO L225 Difference]: With dead ends: 65 [2020-10-28 17:15:42,877 INFO L226 Difference]: Without dead ends: 60 [2020-10-28 17:15:42,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:15:42,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-28 17:15:42,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-28 17:15:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-28 17:15:42,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 78 transitions. [2020-10-28 17:15:42,907 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 78 transitions. Word has length 31 [2020-10-28 17:15:42,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:15:42,907 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 78 transitions. [2020-10-28 17:15:42,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 17:15:42,908 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 78 transitions. [2020-10-28 17:15:42,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-28 17:15:42,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:15:42,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:15:42,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 17:15:42,913 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:15:42,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:15:42,914 INFO L82 PathProgramCache]: Analyzing trace with hash 210740335, now seen corresponding path program 1 times [2020-10-28 17:15:42,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:15:42,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692012045] [2020-10-28 17:15:42,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:15:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:42,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:42,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:43,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:43,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 17:15:43,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:15:43,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 470 [2020-10-28 17:15:43,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:43,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:15:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-28 17:15:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:15:43,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 17:15:43,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:15:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:43,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:43,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:43,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:15:43,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:43,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:15:43,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:43,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:43,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:43,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:43,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:43,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:43,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:15:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:43,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:43,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:43,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 17:15:43,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:43,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:15:43,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:43,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:43,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:43,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:43,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:43,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:43,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:15:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:43,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:43,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:43,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:15:43,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:43,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:15:43,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:43,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:43,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:43,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 17:15:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:43,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:43,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:43,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:15:43,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:43,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 17:15:43,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:43,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:43,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:15:43,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:43,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:15:43,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:43,563 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 17:15:43,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692012045] [2020-10-28 17:15:43,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:15:43,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 17:15:43,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248385124] [2020-10-28 17:15:43,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 17:15:43,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:15:43,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 17:15:43,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 17:15:43,567 INFO L87 Difference]: Start difference. First operand 60 states and 78 transitions. Second operand 6 states. [2020-10-28 17:15:44,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:15:44,114 INFO L93 Difference]: Finished difference Result 67 states and 86 transitions. [2020-10-28 17:15:44,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 17:15:44,114 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-28 17:15:44,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:15:44,116 INFO L225 Difference]: With dead ends: 67 [2020-10-28 17:15:44,116 INFO L226 Difference]: Without dead ends: 62 [2020-10-28 17:15:44,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:15:44,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-28 17:15:44,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2020-10-28 17:15:44,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-28 17:15:44,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 78 transitions. [2020-10-28 17:15:44,130 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 78 transitions. Word has length 32 [2020-10-28 17:15:44,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:15:44,130 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 78 transitions. [2020-10-28 17:15:44,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 17:15:44,131 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 78 transitions. [2020-10-28 17:15:44,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-28 17:15:44,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:15:44,133 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:15:44,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 17:15:44,133 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:15:44,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:15:44,134 INFO L82 PathProgramCache]: Analyzing trace with hash 427502166, now seen corresponding path program 1 times [2020-10-28 17:15:44,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:15:44,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [320401050] [2020-10-28 17:15:44,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:15:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:44,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:44,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:44,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:44,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:44,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:45,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:45,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:45,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:46,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:48,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:48,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-28 17:15:48,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 17:15:48,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3891 [2020-10-28 17:15:48,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:48,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:48,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:15:48,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-28 17:15:48,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 17:15:48,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:48,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:15:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:48,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:48,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:48,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:15:48,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:48,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:15:48,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:48,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:48,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:48,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:48,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:15:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:48,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:48,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:48,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 17:15:48,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:48,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:15:48,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:48,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:48,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:48,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:48,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:48,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:48,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:15:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:48,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:48,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:48,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:15:48,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:48,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:15:48,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:48,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:48,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:48,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:48,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:48,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:48,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 17:15:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:48,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:48,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:48,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:48,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 17:15:48,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:15:48,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 17:15:48,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:48,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:48,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:15:48,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:48,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 17:15:48,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:48,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:15:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:48,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:48,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:48,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:15:48,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:48,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:15:48,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:48,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:48,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:15:48,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:48,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:15:48,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:15:48,215 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 17:15:48,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [320401050] [2020-10-28 17:15:48,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:15:48,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 17:15:48,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478142059] [2020-10-28 17:15:48,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 17:15:48,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:15:48,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 17:15:48,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 17:15:48,217 INFO L87 Difference]: Start difference. First operand 60 states and 78 transitions. Second operand 6 states. [2020-10-28 17:15:48,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:15:48,648 INFO L93 Difference]: Finished difference Result 73 states and 94 transitions. [2020-10-28 17:15:48,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 17:15:48,649 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-10-28 17:15:48,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:15:48,651 INFO L225 Difference]: With dead ends: 73 [2020-10-28 17:15:48,651 INFO L226 Difference]: Without dead ends: 62 [2020-10-28 17:15:48,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:15:48,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-28 17:15:48,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-10-28 17:15:48,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-28 17:15:48,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2020-10-28 17:15:48,663 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 37 [2020-10-28 17:15:48,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:15:48,663 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2020-10-28 17:15:48,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 17:15:48,664 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2020-10-28 17:15:48,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-28 17:15:48,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:15:48,666 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:15:48,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 17:15:48,666 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:15:48,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:15:48,667 INFO L82 PathProgramCache]: Analyzing trace with hash -2025707430, now seen corresponding path program 1 times [2020-10-28 17:15:48,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:15:48,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249474917] [2020-10-28 17:15:48,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:15:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:48,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:48,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:48,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:49,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:50,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:50,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-28 17:15:50,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:15:50,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1769 [2020-10-28 17:15:50,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:50,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:50,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:15:50,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-28 17:15:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:15:50,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:50,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:15:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:50,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:50,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:50,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:15:50,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:50,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:15:50,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:50,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:50,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:50,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:50,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:50,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:15:50,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:15:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:50,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:50,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:50,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 17:15:50,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:50,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:15:50,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:50,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:50,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:50,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:50,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:50,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:50,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:15:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:50,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:50,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:50,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:15:50,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:50,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:15:50,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:50,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:50,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:50,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:15:50,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 17:15:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:50,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:50,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:50,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:50,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 17:15:50,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:15:50,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 17:15:50,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:50,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:50,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:15:50,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:50,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 17:15:50,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:50,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:15:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:50,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:50,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:50,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:15:50,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:50,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:15:50,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:50,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:50,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:15:50,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:50,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:15:50,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:50,610 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-28 17:15:50,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249474917] [2020-10-28 17:15:50,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:15:50,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 17:15:50,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938579957] [2020-10-28 17:15:50,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 17:15:50,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:15:50,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 17:15:50,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-28 17:15:50,613 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand 7 states. [2020-10-28 17:15:51,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:15:51,081 INFO L93 Difference]: Finished difference Result 72 states and 92 transitions. [2020-10-28 17:15:51,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 17:15:51,081 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2020-10-28 17:15:51,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:15:51,084 INFO L225 Difference]: With dead ends: 72 [2020-10-28 17:15:51,084 INFO L226 Difference]: Without dead ends: 67 [2020-10-28 17:15:51,085 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:15:51,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-28 17:15:51,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2020-10-28 17:15:51,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-28 17:15:51,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2020-10-28 17:15:51,107 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 39 [2020-10-28 17:15:51,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:15:51,107 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2020-10-28 17:15:51,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 17:15:51,107 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2020-10-28 17:15:51,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-28 17:15:51,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:15:51,109 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:15:51,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 17:15:51,110 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:15:51,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:15:51,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1861770317, now seen corresponding path program 1 times [2020-10-28 17:15:51,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:15:51,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [847798112] [2020-10-28 17:15:51,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:15:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:51,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:51,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:51,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:51,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-28 17:15:51,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:15:51,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 615 [2020-10-28 17:15:51,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:51,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:15:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 17:15:51,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:15:51,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:51,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:15:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:51,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:51,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:51,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:15:51,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:51,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:15:51,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:51,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:51,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:51,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:51,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:51,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:51,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:15:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:51,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:51,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:51,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 17:15:51,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:51,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:15:51,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:51,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:15:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:51,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 17:15:51,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:51,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:15:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:51,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:51,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:51,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:15:51,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:51,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:15:51,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:51,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:51,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:15:51,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:51,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:15:51,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:51,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 17:15:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:51,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:51,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:51,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:15:51,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:51,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:15:51,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:51,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:51,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:51,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 17:15:51,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:51,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:51,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:15:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:51,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:51,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:51,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:15:51,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:51,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:15:51,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:51,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:51,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:51,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:51,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:51,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:51,917 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-28 17:15:51,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [847798112] [2020-10-28 17:15:51,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:15:51,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 17:15:51,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436635418] [2020-10-28 17:15:51,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 17:15:51,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:15:51,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 17:15:51,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:15:51,923 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand 9 states. [2020-10-28 17:15:52,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:15:52,534 INFO L93 Difference]: Finished difference Result 97 states and 123 transitions. [2020-10-28 17:15:52,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 17:15:52,535 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2020-10-28 17:15:52,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:15:52,537 INFO L225 Difference]: With dead ends: 97 [2020-10-28 17:15:52,537 INFO L226 Difference]: Without dead ends: 67 [2020-10-28 17:15:52,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2020-10-28 17:15:52,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-28 17:15:52,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-10-28 17:15:52,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-28 17:15:52,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2020-10-28 17:15:52,549 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 40 [2020-10-28 17:15:52,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:15:52,549 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2020-10-28 17:15:52,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 17:15:52,549 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2020-10-28 17:15:52,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-28 17:15:52,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:15:52,551 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:15:52,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 17:15:52,552 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:15:52,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:15:52,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1717574810, now seen corresponding path program 1 times [2020-10-28 17:15:52,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:15:52,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047967881] [2020-10-28 17:15:52,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:15:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:52,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:52,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:52,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:15:52,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:52,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-28 17:15:52,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:52,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:15:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 17:15:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:15:52,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:52,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:15:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:52,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:52,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:52,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:15:52,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:52,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:15:52,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:52,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:52,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:52,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:52,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:52,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:52,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:15:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:52,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:52,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:52,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:15:52,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:52,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:15:52,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:52,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:52,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:15:52,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:52,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:15:52,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:52,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:15:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:52,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:52,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:52,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:15:52,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:52,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:15:52,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:52,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:15:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:15:52,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:52,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:15:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:52,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:52,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:52,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:15:52,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:52,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 17:15:52,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:52,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:15:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:15:52,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:53,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:15:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:53,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:53,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:53,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:15:53,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:53,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:15:53,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:53,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:53,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:15:53,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:53,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:15:53,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 17:15:53,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047967881] [2020-10-28 17:15:53,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:15:53,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-28 17:15:53,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577871399] [2020-10-28 17:15:53,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 17:15:53,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:15:53,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 17:15:53,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-28 17:15:53,043 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand 14 states. [2020-10-28 17:15:54,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:15:54,233 INFO L93 Difference]: Finished difference Result 91 states and 115 transitions. [2020-10-28 17:15:54,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 17:15:54,233 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2020-10-28 17:15:54,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:15:54,237 INFO L225 Difference]: With dead ends: 91 [2020-10-28 17:15:54,237 INFO L226 Difference]: Without dead ends: 86 [2020-10-28 17:15:54,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2020-10-28 17:15:54,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-28 17:15:54,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2020-10-28 17:15:54,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-28 17:15:54,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2020-10-28 17:15:54,260 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 41 [2020-10-28 17:15:54,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:15:54,261 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2020-10-28 17:15:54,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 17:15:54,261 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2020-10-28 17:15:54,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-28 17:15:54,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:15:54,262 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:15:54,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 17:15:54,263 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:15:54,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:15:54,263 INFO L82 PathProgramCache]: Analyzing trace with hash 440308350, now seen corresponding path program 1 times [2020-10-28 17:15:54,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:15:54,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53614633] [2020-10-28 17:15:54,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:15:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:54,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:54,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:54,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:54,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 17:15:54,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:15:54,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-28 17:15:54,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:54,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:54,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:15:54,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 17:15:54,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 17:15:54,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:54,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:15:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:54,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:54,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:54,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:15:54,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:54,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:15:54,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:54,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:54,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:54,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:54,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:54,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:54,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:15:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:54,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:54,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:54,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 17:15:54,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:54,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:15:54,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:54,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:54,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:15:54,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:15:54,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 17:15:54,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:54,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:15:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:54,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:54,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:54,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:15:54,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:54,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:15:54,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:54,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:54,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:15:54,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:15:54,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 17:15:54,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:54,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 17:15:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:54,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:54,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:54,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:15:54,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:54,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:15:54,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:54,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:54,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:54,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 17:15:54,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:54,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:54,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:15:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:54,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:54,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:54,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:15:54,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:54,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:15:54,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:54,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:54,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:54,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:54,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:54,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:54,661 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-28 17:15:54,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53614633] [2020-10-28 17:15:54,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:15:54,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 17:15:54,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083646394] [2020-10-28 17:15:54,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 17:15:54,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:15:54,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 17:15:54,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 17:15:54,664 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand 5 states. [2020-10-28 17:15:54,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:15:54,903 INFO L93 Difference]: Finished difference Result 125 states and 160 transitions. [2020-10-28 17:15:54,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 17:15:54,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-10-28 17:15:54,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:15:54,905 INFO L225 Difference]: With dead ends: 125 [2020-10-28 17:15:54,905 INFO L226 Difference]: Without dead ends: 87 [2020-10-28 17:15:54,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 17:15:54,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-28 17:15:54,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2020-10-28 17:15:54,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-28 17:15:54,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 106 transitions. [2020-10-28 17:15:54,921 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 106 transitions. Word has length 42 [2020-10-28 17:15:54,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:15:54,922 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 106 transitions. [2020-10-28 17:15:54,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 17:15:54,922 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 106 transitions. [2020-10-28 17:15:54,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-28 17:15:54,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:15:54,923 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:15:54,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 17:15:54,924 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:15:54,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:15:54,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1000245598, now seen corresponding path program 1 times [2020-10-28 17:15:54,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:15:54,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [261845136] [2020-10-28 17:15:54,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:15:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:54,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:54,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:55,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:55,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:55,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 17:15:55,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:15:55,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 399 [2020-10-28 17:15:55,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:55,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:55,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:15:55,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 17:15:55,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:15:55,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:55,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:15:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:55,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:55,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:55,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:15:55,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:55,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:15:55,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:55,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:55,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:55,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:55,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:55,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:55,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:15:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:55,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:55,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:55,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:55,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 17:15:55,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:15:55,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 17:15:55,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:55,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:55,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:15:55,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 17:15:55,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:15:55,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:55,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:15:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:55,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:55,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:55,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:55,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:15:55,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:15:55,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:15:55,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:55,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:15:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:15:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:15:55,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:55,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 17:15:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:55,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:55,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:55,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:15:55,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:55,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:15:55,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:55,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:55,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:55,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 17:15:55,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:55,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:55,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:15:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:55,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:55,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:55,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:15:55,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:55,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:15:55,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:55,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:55,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:55,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:55,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:55,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:55,470 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-28 17:15:55,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [261845136] [2020-10-28 17:15:55,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:15:55,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 17:15:55,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098669646] [2020-10-28 17:15:55,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 17:15:55,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:15:55,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 17:15:55,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 17:15:55,473 INFO L87 Difference]: Start difference. First operand 83 states and 106 transitions. Second operand 6 states. [2020-10-28 17:15:55,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:15:55,838 INFO L93 Difference]: Finished difference Result 124 states and 158 transitions. [2020-10-28 17:15:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 17:15:55,839 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-10-28 17:15:55,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:15:55,840 INFO L225 Difference]: With dead ends: 124 [2020-10-28 17:15:55,840 INFO L226 Difference]: Without dead ends: 89 [2020-10-28 17:15:55,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:15:55,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-28 17:15:55,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 83. [2020-10-28 17:15:55,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-28 17:15:55,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 106 transitions. [2020-10-28 17:15:55,854 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 106 transitions. Word has length 43 [2020-10-28 17:15:55,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:15:55,855 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 106 transitions. [2020-10-28 17:15:55,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 17:15:55,855 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 106 transitions. [2020-10-28 17:15:55,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-28 17:15:55,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:15:55,856 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:15:55,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 17:15:55,856 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:15:55,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:15:55,857 INFO L82 PathProgramCache]: Analyzing trace with hash 882486141, now seen corresponding path program 1 times [2020-10-28 17:15:55,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:15:55,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327029832] [2020-10-28 17:15:55,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:15:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:55,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:55,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:56,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:56,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-28 17:15:56,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:15:56,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 544 [2020-10-28 17:15:56,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:56,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:15:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-28 17:15:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:15:56,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:56,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:15:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:56,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:56,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:56,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:15:56,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:56,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:15:56,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:56,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:56,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:56,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:56,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:56,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:56,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:15:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:56,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:56,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:56,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:15:56,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:56,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:15:56,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:56,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:56,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:56,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:56,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:56,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:56,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:15:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:56,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:56,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:56,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:15:56,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:56,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:15:56,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:56,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:56,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:56,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:56,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:56,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:56,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:15:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:56,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:56,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:56,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 17:15:56,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:56,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 17:15:56,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:56,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:56,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:15:56,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 17:15:56,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:15:56,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:56,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:15:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:56,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:56,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:56,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 17:15:56,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:56,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:15:56,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:56,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:15:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:15:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:15:56,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:56,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:15:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:56,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:56,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:56,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:15:56,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:56,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:15:56,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:56,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:56,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:15:56,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:15:56,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:15:56,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:56,558 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-28 17:15:56,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327029832] [2020-10-28 17:15:56,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:15:56,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 17:15:56,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796783502] [2020-10-28 17:15:56,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 17:15:56,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:15:56,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 17:15:56,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 17:15:56,560 INFO L87 Difference]: Start difference. First operand 83 states and 106 transitions. Second operand 6 states. [2020-10-28 17:15:56,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:15:56,946 INFO L93 Difference]: Finished difference Result 100 states and 126 transitions. [2020-10-28 17:15:56,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 17:15:56,948 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2020-10-28 17:15:56,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:15:56,949 INFO L225 Difference]: With dead ends: 100 [2020-10-28 17:15:56,949 INFO L226 Difference]: Without dead ends: 81 [2020-10-28 17:15:56,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:15:56,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-28 17:15:56,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-10-28 17:15:56,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-28 17:15:56,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 102 transitions. [2020-10-28 17:15:56,972 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 102 transitions. Word has length 48 [2020-10-28 17:15:56,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:15:56,973 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 102 transitions. [2020-10-28 17:15:56,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 17:15:56,973 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2020-10-28 17:15:56,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-28 17:15:56,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:15:56,977 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:15:56,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 17:15:56,978 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:15:56,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:15:56,978 INFO L82 PathProgramCache]: Analyzing trace with hash -375765252, now seen corresponding path program 2 times [2020-10-28 17:15:56,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:15:56,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605886308] [2020-10-28 17:15:56,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:15:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:57,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:57,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:57,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-28 17:15:57,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:57,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-28 17:15:57,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:57,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:57,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:15:57,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 17:15:57,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-28 17:15:57,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:57,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:15:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:57,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:57,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:57,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:15:57,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:57,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:15:57,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:57,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:15:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:15:57,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:57,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:15:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:57,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:57,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:57,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:15:57,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:57,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:15:57,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:57,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:57,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:15:57,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:15:57,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:57,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:15:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:57,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:57,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:57,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:15:57,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:57,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:15:57,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:57,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:57,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:15:57,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:57,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:15:57,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:57,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:15:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:57,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:57,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:57,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:15:57,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:57,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-28 17:15:57,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:57,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:57,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 17:15:57,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:57,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-28 17:15:57,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:57,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:15:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:57,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:57,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:57,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:15:57,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:57,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 17:15:57,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:57,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:57,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:15:57,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:57,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:15:57,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:15:57,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:15:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:57,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:57,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:15:57,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:15:57,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:15:57,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:15:57,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:15:57,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:15:57,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:15:57,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:15:57,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:15:57,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:15:57,727 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-28 17:15:57,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605886308] [2020-10-28 17:15:57,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:15:57,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-28 17:15:57,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21309709] [2020-10-28 17:15:57,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 17:15:57,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:15:57,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 17:15:57,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-10-28 17:15:57,730 INFO L87 Difference]: Start difference. First operand 81 states and 102 transitions. Second operand 16 states. [2020-10-28 17:15:59,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:15:59,163 INFO L93 Difference]: Finished difference Result 92 states and 115 transitions. [2020-10-28 17:15:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 17:15:59,165 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 49 [2020-10-28 17:15:59,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:15:59,167 INFO L225 Difference]: With dead ends: 92 [2020-10-28 17:15:59,167 INFO L226 Difference]: Without dead ends: 87 [2020-10-28 17:15:59,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=105, Invalid=707, Unknown=0, NotChecked=0, Total=812 [2020-10-28 17:15:59,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-28 17:15:59,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2020-10-28 17:15:59,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-28 17:15:59,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 107 transitions. [2020-10-28 17:15:59,178 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 107 transitions. Word has length 49 [2020-10-28 17:15:59,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:15:59,179 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 107 transitions. [2020-10-28 17:15:59,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 17:15:59,179 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 107 transitions. [2020-10-28 17:15:59,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-28 17:15:59,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:15:59,180 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:15:59,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 17:15:59,181 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:15:59,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:15:59,181 INFO L82 PathProgramCache]: Analyzing trace with hash -449707860, now seen corresponding path program 1 times [2020-10-28 17:15:59,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:15:59,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322297854] [2020-10-28 17:15:59,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:15:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:15:59,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:59,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:59,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:59,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:59,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:59,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:59,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:59,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:59,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:15:59,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:00,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:00,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:00,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:00,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:00,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:00,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:00,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:00,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:00,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:00,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:00,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:00,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:01,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:02,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:03,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:04,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 17:16:04,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 25 [2020-10-28 17:16:04,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 17:16:04,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:04,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:04,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:16:04,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-28 17:16:04,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-28 17:16:04,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:16:04,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:16:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:04,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:04,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:16:04,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:04,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:16:04,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:04,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:04,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:04,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:04,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:16:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:04,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:04,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:16:04,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:04,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:16:04,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:04,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:04,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:04,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:16:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:04,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:04,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:16:04,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:04,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:16:04,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:04,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:04,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:04,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:04,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:04,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:04,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:16:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:04,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:04,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:05,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:05,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 17:16:05,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-28 17:16:05,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 974 [2020-10-28 17:16:05,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:05,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:05,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:16:05,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:05,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:16:05,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:05,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:05,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:05,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:05,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:05,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:05,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:05,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:05,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:05,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:05,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:05,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 17:16:05,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 17:16:05,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-28 17:16:05,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:05,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:05,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:16:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-28 17:16:05,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:05,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:05,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:05,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:05,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:05,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:05,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 17:16:05,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:16:05,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 17:16:05,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:05,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:05,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:16:05,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:05,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 17:16:05,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:05,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:16:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:05,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:05,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:05,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:16:05,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:05,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:16:05,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:05,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:16:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:05,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:16:05,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:05,702 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-28 17:16:05,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322297854] [2020-10-28 17:16:05,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:16:05,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 17:16:05,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024124732] [2020-10-28 17:16:05,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:16:05,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:16:05,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:16:05,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:16:05,705 INFO L87 Difference]: Start difference. First operand 84 states and 107 transitions. Second operand 10 states. [2020-10-28 17:16:06,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:16:06,334 INFO L93 Difference]: Finished difference Result 103 states and 132 transitions. [2020-10-28 17:16:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 17:16:06,335 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2020-10-28 17:16:06,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:16:06,337 INFO L225 Difference]: With dead ends: 103 [2020-10-28 17:16:06,337 INFO L226 Difference]: Without dead ends: 87 [2020-10-28 17:16:06,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2020-10-28 17:16:06,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-28 17:16:06,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-28 17:16:06,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-28 17:16:06,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 110 transitions. [2020-10-28 17:16:06,354 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 110 transitions. Word has length 55 [2020-10-28 17:16:06,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:16:06,354 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 110 transitions. [2020-10-28 17:16:06,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:16:06,354 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 110 transitions. [2020-10-28 17:16:06,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-28 17:16:06,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:16:06,364 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 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 17:16:06,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 17:16:06,364 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:16:06,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:16:06,365 INFO L82 PathProgramCache]: Analyzing trace with hash 2065630042, now seen corresponding path program 3 times [2020-10-28 17:16:06,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:16:06,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673711820] [2020-10-28 17:16:06,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:16:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:06,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:06,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:06,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 17:16:06,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:06,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-28 17:16:06,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:06,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:06,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:16:06,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 17:16:06,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 17:16:06,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:06,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:16:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:06,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:06,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:06,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:16:06,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:06,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:16:06,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:06,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:06,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:06,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:06,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:06,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:06,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:16:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:06,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:06,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:06,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:16:06,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:06,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:16:06,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:06,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:06,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:16:06,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:06,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:16:06,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:06,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:16:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:06,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:06,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:06,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:16:06,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:06,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:16:06,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:06,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:06,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:16:06,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:06,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:16:06,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:06,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:16:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:06,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:06,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:06,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:16:06,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:06,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 17:16:06,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:06,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:06,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 17:16:06,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:06,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-28 17:16:06,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:07,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:07,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:07,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:07,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:16:07,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:07,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 17:16:07,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:07,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:07,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:16:07,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:07,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:16:07,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:07,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:07,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:07,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:07,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:16:07,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:07,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 17:16:07,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:07,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:07,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:16:07,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:07,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:16:07,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:16:07,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:07,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:07,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:07,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:16:07,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:07,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:16:07,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:07,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:07,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:16:07,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:07,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:16:07,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:16:07,298 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-28 17:16:07,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673711820] [2020-10-28 17:16:07,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:16:07,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-28 17:16:07,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755190469] [2020-10-28 17:16:07,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-28 17:16:07,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:16:07,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-28 17:16:07,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-10-28 17:16:07,302 INFO L87 Difference]: Start difference. First operand 87 states and 110 transitions. Second operand 18 states. [2020-10-28 17:16:08,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:16:08,848 INFO L93 Difference]: Finished difference Result 98 states and 123 transitions. [2020-10-28 17:16:08,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:16:08,849 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 57 [2020-10-28 17:16:08,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:16:08,851 INFO L225 Difference]: With dead ends: 98 [2020-10-28 17:16:08,851 INFO L226 Difference]: Without dead ends: 93 [2020-10-28 17:16:08,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=928, Unknown=0, NotChecked=0, Total=1056 [2020-10-28 17:16:08,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-28 17:16:08,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2020-10-28 17:16:08,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-28 17:16:08,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 115 transitions. [2020-10-28 17:16:08,865 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 115 transitions. Word has length 57 [2020-10-28 17:16:08,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:16:08,865 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 115 transitions. [2020-10-28 17:16:08,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-28 17:16:08,869 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 115 transitions. [2020-10-28 17:16:08,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-28 17:16:08,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:16:08,871 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:16:08,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 17:16:08,871 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:16:08,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:16:08,871 INFO L82 PathProgramCache]: Analyzing trace with hash 213028650, now seen corresponding path program 2 times [2020-10-28 17:16:08,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:16:08,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1018799982] [2020-10-28 17:16:08,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:16:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:08,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:08,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:08,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:09,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:10,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:11,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:11,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:11,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:11,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:13,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:13,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:13,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:13,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:13,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:13,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 17:16:13,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 49 [2020-10-28 17:16:13,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 17:16:13,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:13,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:16:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-28 17:16:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 17:16:13,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:13,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:16:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:13,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:13,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:13,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:16:13,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:13,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:16:13,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:13,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:13,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:13,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:13,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:13,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:13,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:16:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:13,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:14,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:16:14,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:16:14,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:14,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:14,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:14,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:16:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:14,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:14,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:16:14,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:14,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:16:14,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:14,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:14,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:14,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:14,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:14,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:14,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:16:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:14,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:14,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:15,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:15,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:15,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:15,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:15,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:15,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:15,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:15,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:15,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:16,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:16,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:16:16,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 32 [2020-10-28 17:16:16,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2934 [2020-10-28 17:16:16,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:16,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:16,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:16:16,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 17:16:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 17:16:16,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:16:16,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:16,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:16,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:16,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:16,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:17,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 17:16:17,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-28 17:16:17,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 609 [2020-10-28 17:16:17,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:17,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:17,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:16:17,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:16:17,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 17:16:17,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:17,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:17,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:17,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 17:16:17,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 17:16:17,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-28 17:16:17,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:17,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:17,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:16:17,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:16:17,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-28 17:16:17,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:17,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:17,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:17,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 17:16:17,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:17,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:16:17,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:17,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:17,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:16:17,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:17,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 17:16:17,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:17,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:16:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:17,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:17,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:17,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:16:17,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:17,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:16:17,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:17,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:17,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:16:17,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:17,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:16:17,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:17,950 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 30 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-28 17:16:17,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1018799982] [2020-10-28 17:16:17,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:16:17,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 17:16:17,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024543456] [2020-10-28 17:16:17,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 17:16:17,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:16:17,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 17:16:17,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-28 17:16:17,952 INFO L87 Difference]: Start difference. First operand 90 states and 115 transitions. Second operand 8 states. [2020-10-28 17:16:18,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:16:18,629 INFO L93 Difference]: Finished difference Result 113 states and 141 transitions. [2020-10-28 17:16:18,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 17:16:18,630 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-10-28 17:16:18,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:16:18,631 INFO L225 Difference]: With dead ends: 113 [2020-10-28 17:16:18,632 INFO L226 Difference]: Without dead ends: 90 [2020-10-28 17:16:18,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:16:18,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-28 17:16:18,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-10-28 17:16:18,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-28 17:16:18,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 114 transitions. [2020-10-28 17:16:18,643 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 114 transitions. Word has length 63 [2020-10-28 17:16:18,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:16:18,643 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 114 transitions. [2020-10-28 17:16:18,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 17:16:18,644 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 114 transitions. [2020-10-28 17:16:18,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-28 17:16:18,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:16:18,645 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 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 17:16:18,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 17:16:18,645 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:16:18,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:16:18,646 INFO L82 PathProgramCache]: Analyzing trace with hash -180609988, now seen corresponding path program 4 times [2020-10-28 17:16:18,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:16:18,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543641850] [2020-10-28 17:16:18,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:16:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:18,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:19,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:19,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 17:16:19,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:19,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-28 17:16:19,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:19,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:19,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:16:19,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 17:16:19,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:16:19,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:16:19,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:16:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:19,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:19,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:19,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:16:19,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:19,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:16:19,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:19,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:19,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:19,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:19,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:19,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:19,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:16:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:19,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:19,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:19,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:16:19,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:19,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:16:19,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:19,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:19,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:16:19,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:19,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:16:19,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:16:19,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:16:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:19,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:19,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:19,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:16:19,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:19,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:16:19,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:19,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:16:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:16:19,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:19,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:16:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:19,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:19,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:19,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 17:16:19,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:19,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-28 17:16:19,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:19,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 17:16:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-28 17:16:19,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:19,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:19,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:19,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:19,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:16:19,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:19,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-28 17:16:19,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:19,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:19,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:16:19,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:19,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:16:19,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:19,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:19,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:19,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:19,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:16:19,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:19,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 17:16:19,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:19,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:19,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 17:16:19,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:19,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-28 17:16:19,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:19,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:19,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:19,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:19,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:16:19,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:19,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 17:16:19,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:19,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:19,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:16:19,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:19,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:16:19,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:19,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:19,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:19,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:19,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:16:19,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:19,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:16:19,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:19,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:19,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:16:19,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:19,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:16:19,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:19,808 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-28 17:16:19,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543641850] [2020-10-28 17:16:19,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:16:19,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-28 17:16:19,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899372333] [2020-10-28 17:16:19,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-28 17:16:19,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:16:19,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-28 17:16:19,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2020-10-28 17:16:19,811 INFO L87 Difference]: Start difference. First operand 90 states and 114 transitions. Second operand 19 states. [2020-10-28 17:16:21,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:16:21,307 INFO L93 Difference]: Finished difference Result 104 states and 133 transitions. [2020-10-28 17:16:21,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 17:16:21,308 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 65 [2020-10-28 17:16:21,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:16:21,309 INFO L225 Difference]: With dead ends: 104 [2020-10-28 17:16:21,309 INFO L226 Difference]: Without dead ends: 99 [2020-10-28 17:16:21,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=126, Invalid=930, Unknown=0, NotChecked=0, Total=1056 [2020-10-28 17:16:21,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-28 17:16:21,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 96. [2020-10-28 17:16:21,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-28 17:16:21,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2020-10-28 17:16:21,328 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 65 [2020-10-28 17:16:21,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:16:21,329 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2020-10-28 17:16:21,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-28 17:16:21,331 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2020-10-28 17:16:21,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-28 17:16:21,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:16:21,333 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:16:21,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 17:16:21,333 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:16:21,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:16:21,336 INFO L82 PathProgramCache]: Analyzing trace with hash 335367819, now seen corresponding path program 1 times [2020-10-28 17:16:21,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:16:21,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018967313] [2020-10-28 17:16:21,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:16:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:21,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:21,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:21,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:21,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:21,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:21,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:21,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:21,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:24,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:24,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:26,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-28 17:16:26,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-28 17:16:26,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 17:16:26,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:26,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:26,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:16:26,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 17:16:26,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 17:16:26,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:26,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:16:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:26,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:26,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:16:26,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:26,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:16:26,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:26,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:26,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:26,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:26,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:16:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:26,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:26,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-28 17:16:26,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 17:16:26,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-10-28 17:16:26,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:26,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:26,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:16:26,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:16:26,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 17:16:26,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:26,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:16:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:26,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:26,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:16:26,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 17:16:26,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-28 17:16:26,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:26,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:26,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:16:26,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:16:26,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 17:16:26,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:26,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:16:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:26,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:26,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:16:26,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:26,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:16:26,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:26,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:26,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:16:26,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:26,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:16:26,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:26,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-28 17:16:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:26,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:26,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:16:26,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:26,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:16:26,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:26,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:26,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:16:26,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:16:26,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:16:26,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:26,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 17:16:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:26,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:26,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:16:26,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:26,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:16:26,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:26,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:26,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:26,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-28 17:16:26,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:26,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:26,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:26,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:26,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:16:26,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:26,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:16:26,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:26,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:26,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:26,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:26,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:26,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:26,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:26,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:26,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:16:26,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:26,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:16:26,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:26,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:26,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:26,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:26,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:26,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:26,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:26,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:26,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:26,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:16:26,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:26,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:16:26,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:26,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:26,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:26,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:26,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:26,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-28 17:16:26,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018967313] [2020-10-28 17:16:26,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:16:26,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 17:16:26,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624343669] [2020-10-28 17:16:26,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 17:16:26,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:16:26,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 17:16:26,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 17:16:26,991 INFO L87 Difference]: Start difference. First operand 96 states and 125 transitions. Second operand 6 states. [2020-10-28 17:16:27,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:16:27,344 INFO L93 Difference]: Finished difference Result 149 states and 193 transitions. [2020-10-28 17:16:27,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 17:16:27,344 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 74 [2020-10-28 17:16:27,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:16:27,345 INFO L225 Difference]: With dead ends: 149 [2020-10-28 17:16:27,346 INFO L226 Difference]: Without dead ends: 96 [2020-10-28 17:16:27,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:16:27,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-28 17:16:27,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2020-10-28 17:16:27,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-28 17:16:27,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2020-10-28 17:16:27,357 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 124 transitions. Word has length 74 [2020-10-28 17:16:27,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:16:27,358 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 124 transitions. [2020-10-28 17:16:27,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 17:16:27,358 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2020-10-28 17:16:27,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-28 17:16:27,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:16:27,359 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 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 17:16:27,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 17:16:27,360 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:16:27,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:16:27,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1955944986, now seen corresponding path program 5 times [2020-10-28 17:16:27,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:16:27,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444295940] [2020-10-28 17:16:27,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:16:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:27,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:27,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:27,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:16:27,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:27,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-10-28 17:16:27,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:27,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:16:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 17:16:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:16:27,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:27,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:16:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:27,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:27,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:27,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:16:27,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:27,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:16:27,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:27,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:27,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:27,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:27,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:27,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:27,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:16:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:27,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:27,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:27,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:16:27,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:27,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:16:27,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:27,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:27,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:16:27,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:27,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:16:27,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:27,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:16:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:27,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:27,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:27,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:16:27,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:27,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:16:27,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:27,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:27,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:16:27,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:27,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:16:27,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:27,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:16:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:27,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:28,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:28,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 17:16:28,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:28,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-28 17:16:28,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:28,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:28,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-28 17:16:28,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:28,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-28 17:16:28,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:28,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:28,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:28,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:28,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 17:16:28,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:28,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-28 17:16:28,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:28,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:28,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:16:28,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:28,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-28 17:16:28,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:28,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:28,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:28,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:28,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:16:28,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:28,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 17:16:28,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:28,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 17:16:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:16:28,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:28,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:28,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:28,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:28,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:16:28,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:28,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 17:16:28,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:28,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:28,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 17:16:28,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:28,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:16:28,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:28,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:28,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:28,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:28,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:16:28,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:28,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:16:28,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:28,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:16:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:16:28,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:28,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:28,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:28,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:28,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:16:28,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:28,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:16:28,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:28,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:28,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:16:28,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:28,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:16:28,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:28,667 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 16 proven. 52 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-28 17:16:28,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444295940] [2020-10-28 17:16:28,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:16:28,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-28 17:16:28,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086160717] [2020-10-28 17:16:28,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-28 17:16:28,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:16:28,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-28 17:16:28,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2020-10-28 17:16:28,670 INFO L87 Difference]: Start difference. First operand 96 states and 124 transitions. Second operand 22 states. [2020-10-28 17:16:30,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:16:30,895 INFO L93 Difference]: Finished difference Result 110 states and 142 transitions. [2020-10-28 17:16:30,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 17:16:30,896 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 73 [2020-10-28 17:16:30,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:16:30,897 INFO L225 Difference]: With dead ends: 110 [2020-10-28 17:16:30,897 INFO L226 Difference]: Without dead ends: 105 [2020-10-28 17:16:30,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=171, Invalid=1469, Unknown=0, NotChecked=0, Total=1640 [2020-10-28 17:16:30,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-28 17:16:30,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 102. [2020-10-28 17:16:30,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-28 17:16:30,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 134 transitions. [2020-10-28 17:16:30,911 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 134 transitions. Word has length 73 [2020-10-28 17:16:30,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:16:30,911 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 134 transitions. [2020-10-28 17:16:30,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-28 17:16:30,911 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 134 transitions. [2020-10-28 17:16:30,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-28 17:16:30,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:16:30,913 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:16:30,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 17:16:30,913 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:16:30,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:16:30,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1863157752, now seen corresponding path program 3 times [2020-10-28 17:16:30,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:16:30,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754901715] [2020-10-28 17:16:30,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:16:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:30,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:31,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:32,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:33,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:33,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:33,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:33,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:33,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:33,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:33,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:33,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:33,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:33,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:33,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:33,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:33,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:33,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:33,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:34,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:34,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:34,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:34,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:34,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:34,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:34,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:34,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:34,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:34,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:34,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:34,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:34,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:34,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:34,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:35,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:35,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-28 17:16:35,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 74 [2020-10-28 17:16:35,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 17:16:35,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:35,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:35,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:16:35,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-28 17:16:35,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:16:35,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:35,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:16:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:35,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:35,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:35,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:16:35,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:35,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:16:35,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:35,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:35,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:35,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:35,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:35,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:35,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:16:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:35,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:35,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:35,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:16:35,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:35,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:16:35,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:35,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:35,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:35,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:35,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:35,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:35,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:16:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:35,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:35,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:35,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:16:35,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:35,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 17:16:35,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:35,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:35,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:35,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:35,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:35,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:35,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:16:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:36,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:36,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:37,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:37,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:37,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:37,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:37,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:37,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:37,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:37,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:37,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:38,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:38,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:38,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:38,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:38,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:38,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:38,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:39,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:40,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:40,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:41,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 17:16:41,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 67 [2020-10-28 17:16:41,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 17:16:41,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:41,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:41,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:16:41,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-28 17:16:41,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:16:41,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:41,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:41,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:41,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:42,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:42,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:42,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:42,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:42,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:42,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:43,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:46,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:46,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:16:46,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 34 [2020-10-28 17:16:46,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 17:16:46,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:46,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:46,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:16:46,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-28 17:16:46,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 17:16:46,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:46,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:46,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:46,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:46,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:46,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:46,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:46,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:46,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:46,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:46,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:46,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:46,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:46,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:46,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:47,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:47,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 17:16:47,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-28 17:16:47,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1177 [2020-10-28 17:16:47,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:47,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:47,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:16:47,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:16:47,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 17:16:47,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:16:47,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:47,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:47,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:47,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:47,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:47,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:47,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:47,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:47,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:47,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 17:16:47,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 17:16:47,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-28 17:16:47,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:47,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:47,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:16:47,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:16:47,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-28 17:16:47,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:47,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:16:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:47,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:47,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:47,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:47,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:47,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:16:47,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:16:47,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 17:16:47,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:47,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:47,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:16:47,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:47,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:16:47,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:47,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:47,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:47,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:47,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:47,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:16:47,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:16:47,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:16:47,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:47,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:47,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:16:47,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:47,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:16:47,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:16:47,609 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 50 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-28 17:16:47,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754901715] [2020-10-28 17:16:47,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:16:47,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-28 17:16:47,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608136533] [2020-10-28 17:16:47,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 17:16:47,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:16:47,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 17:16:47,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-28 17:16:47,611 INFO L87 Difference]: Start difference. First operand 102 states and 134 transitions. Second operand 12 states. [2020-10-28 17:16:48,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:16:48,398 INFO L93 Difference]: Finished difference Result 142 states and 188 transitions. [2020-10-28 17:16:48,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 17:16:48,399 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 71 [2020-10-28 17:16:48,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:16:48,400 INFO L225 Difference]: With dead ends: 142 [2020-10-28 17:16:48,400 INFO L226 Difference]: Without dead ends: 92 [2020-10-28 17:16:48,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-10-28 17:16:48,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-28 17:16:48,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 89. [2020-10-28 17:16:48,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-28 17:16:48,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 109 transitions. [2020-10-28 17:16:48,411 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 109 transitions. Word has length 71 [2020-10-28 17:16:48,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:16:48,411 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 109 transitions. [2020-10-28 17:16:48,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 17:16:48,411 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 109 transitions. [2020-10-28 17:16:48,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-28 17:16:48,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:16:48,413 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:16:48,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 17:16:48,413 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:16:48,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:16:48,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1901052404, now seen corresponding path program 1 times [2020-10-28 17:16:48,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:16:48,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117671676] [2020-10-28 17:16:48,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:16:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:48,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:48,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:48,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:48,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:48,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:48,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:49,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:49,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:50,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:50,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:50,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:50,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:50,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:53,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:16:53,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-28 17:16:53,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 17:16:53,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:53,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:53,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:16:53,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-28 17:16:53,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:16:53,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:53,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:16:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:53,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:53,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:16:53,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:53,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:16:53,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:53,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:53,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:53,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:53,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:53,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:53,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:16:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:53,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:53,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:16:53,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 17:16:53,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-28 17:16:53,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:53,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:53,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:16:53,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-28 17:16:53,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:16:53,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:53,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:16:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:53,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:53,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 17:16:53,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 17:16:53,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-28 17:16:53,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:53,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:53,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:16:53,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 17:16:53,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:16:53,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:53,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:16:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:53,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:53,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:16:53,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:53,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:16:53,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:53,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:53,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:16:53,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:16:53,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:16:53,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:53,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-28 17:16:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:53,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:53,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:16:53,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:53,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:16:53,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:53,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:53,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:53,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:16:53,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:53,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:53,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 17:16:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:53,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:53,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 17:16:53,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:53,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:16:53,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:53,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:53,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:53,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-28 17:16:53,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:53,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:53,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:53,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:53,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 17:16:53,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:53,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:16:53,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:53,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:53,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:53,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:53,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:53,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:53,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:53,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:53,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:16:53,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:53,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:16:53,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:53,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:53,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:53,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:53,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:53,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:53,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:53,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:53,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:53,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:16:53,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:53,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:16:53,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:53,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:53,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:53,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:53,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:53,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:54,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:54,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:16:54,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:54,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:16:54,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:54,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:54,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:54,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:54,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:54,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:54,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:54,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:54,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:54,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:16:54,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:54,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:16:54,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:54,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:54,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:54,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:54,016 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-28 17:16:54,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117671676] [2020-10-28 17:16:54,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:16:54,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 17:16:54,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493557270] [2020-10-28 17:16:54,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 17:16:54,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:16:54,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 17:16:54,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 17:16:54,019 INFO L87 Difference]: Start difference. First operand 89 states and 109 transitions. Second operand 6 states. [2020-10-28 17:16:54,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:16:54,470 INFO L93 Difference]: Finished difference Result 177 states and 224 transitions. [2020-10-28 17:16:54,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 17:16:54,472 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-10-28 17:16:54,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:16:54,479 INFO L225 Difference]: With dead ends: 177 [2020-10-28 17:16:54,479 INFO L226 Difference]: Without dead ends: 93 [2020-10-28 17:16:54,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:16:54,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-28 17:16:54,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 89. [2020-10-28 17:16:54,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-28 17:16:54,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 108 transitions. [2020-10-28 17:16:54,503 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 108 transitions. Word has length 93 [2020-10-28 17:16:54,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:16:54,503 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 108 transitions. [2020-10-28 17:16:54,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 17:16:54,503 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 108 transitions. [2020-10-28 17:16:54,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-28 17:16:54,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:16:54,505 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:16:54,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 17:16:54,505 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:16:54,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:16:54,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1311505037, now seen corresponding path program 1 times [2020-10-28 17:16:54,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:16:54,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34390002] [2020-10-28 17:16:54,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:16:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:54,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:54,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:54,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:54,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:54,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:54,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:54,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:56,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 17:16:56,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-28 17:16:56,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1866 [2020-10-28 17:16:56,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:56,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:56,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:16:56,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-28 17:16:56,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 17:16:56,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:56,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:16:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:56,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:56,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:16:56,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:56,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:16:56,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:56,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:56,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:56,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:16:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:56,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:56,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 17:16:56,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 17:16:56,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-28 17:16:56,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:56,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:56,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:16:56,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 17:16:56,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 17:16:56,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:56,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:16:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:56,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:56,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-28 17:16:56,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 17:16:56,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-28 17:16:56,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:56,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:56,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:16:56,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:16:56,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-28 17:16:56,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:56,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:16:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:56,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:56,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:16:56,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:56,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:16:56,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:56,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:56,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:16:56,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:56,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:16:56,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:56,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 17:16:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:56,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:56,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:16:56,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:56,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:16:56,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:56,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:56,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:16:56,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:56,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:16:56,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:56,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 17:16:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:56,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:56,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:16:56,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:56,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:16:56,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:56,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:56,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:56,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 17:16:56,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:56,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:56,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:56,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:56,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:56,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:16:56,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:56,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:16:56,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:56,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:56,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:56,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:56,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:56,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:56,820 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-28 17:16:56,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34390002] [2020-10-28 17:16:56,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:16:56,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 17:16:56,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358879928] [2020-10-28 17:16:56,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 17:16:56,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:16:56,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 17:16:56,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-28 17:16:56,822 INFO L87 Difference]: Start difference. First operand 89 states and 108 transitions. Second operand 8 states. [2020-10-28 17:16:57,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:16:57,436 INFO L93 Difference]: Finished difference Result 153 states and 195 transitions. [2020-10-28 17:16:57,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 17:16:57,437 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2020-10-28 17:16:57,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:16:57,438 INFO L225 Difference]: With dead ends: 153 [2020-10-28 17:16:57,438 INFO L226 Difference]: Without dead ends: 93 [2020-10-28 17:16:57,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:16:57,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-28 17:16:57,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2020-10-28 17:16:57,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-28 17:16:57,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 112 transitions. [2020-10-28 17:16:57,449 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 112 transitions. Word has length 62 [2020-10-28 17:16:57,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:16:57,449 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 112 transitions. [2020-10-28 17:16:57,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 17:16:57,450 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 112 transitions. [2020-10-28 17:16:57,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-28 17:16:57,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:16:57,451 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 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 17:16:57,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 17:16:57,451 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:16:57,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:16:57,452 INFO L82 PathProgramCache]: Analyzing trace with hash -663805734, now seen corresponding path program 6 times [2020-10-28 17:16:57,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:16:57,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766720582] [2020-10-28 17:16:57,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:16:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:57,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:58,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:58,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 17:16:58,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:58,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-10-28 17:16:58,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:58,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:16:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 17:16:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-28 17:16:58,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:58,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:16:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:58,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:58,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:58,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:16:58,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:58,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:16:58,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:58,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:16:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:16:58,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:58,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:16:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:58,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:58,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:58,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:16:58,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:58,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:16:58,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:58,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:58,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:16:58,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:58,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:16:58,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:58,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:16:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:58,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:58,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:58,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:16:58,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:58,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:16:58,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:58,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:58,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:16:58,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:58,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:16:58,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:58,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:16:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:58,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:58,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:58,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:16:58,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:58,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-28 17:16:58,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:58,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:58,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-28 17:16:58,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:58,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 17:16:58,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:58,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:58,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:58,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:58,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 17:16:58,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:58,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-28 17:16:58,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:58,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:58,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:16:58,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:58,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:16:58,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:58,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:58,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:58,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:58,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 17:16:58,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:58,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-28 17:16:58,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:58,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:58,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-28 17:16:58,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:58,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 17:16:58,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:59,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:59,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:59,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:59,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 17:16:59,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:59,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-28 17:16:59,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:59,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:59,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-28 17:16:59,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:59,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-28 17:16:59,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:59,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:59,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:59,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:59,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:16:59,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:59,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 17:16:59,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:59,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:59,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 17:16:59,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:59,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:16:59,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:59,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:59,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:59,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:59,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:16:59,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:59,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 17:16:59,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:59,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:59,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 17:16:59,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:59,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:16:59,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:59,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:59,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:59,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:59,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:16:59,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:59,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:16:59,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:59,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:59,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:16:59,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:59,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:16:59,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:59,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:16:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:16:59,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:16:59,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:16:59,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:16:59,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:16:59,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:16:59,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:16:59,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:16:59,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:16:59,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:16:59,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:16:59,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:16:59,703 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 24 proven. 95 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-28 17:16:59,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766720582] [2020-10-28 17:16:59,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:16:59,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-28 17:16:59,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776719876] [2020-10-28 17:16:59,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-28 17:16:59,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:16:59,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-28 17:16:59,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=595, Unknown=0, NotChecked=0, Total=650 [2020-10-28 17:16:59,706 INFO L87 Difference]: Start difference. First operand 91 states and 112 transitions. Second operand 26 states. [2020-10-28 17:17:02,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:17:02,424 INFO L93 Difference]: Finished difference Result 105 states and 128 transitions. [2020-10-28 17:17:02,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-28 17:17:02,424 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 89 [2020-10-28 17:17:02,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:17:02,426 INFO L225 Difference]: With dead ends: 105 [2020-10-28 17:17:02,426 INFO L226 Difference]: Without dead ends: 100 [2020-10-28 17:17:02,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=189, Invalid=2163, Unknown=0, NotChecked=0, Total=2352 [2020-10-28 17:17:02,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-28 17:17:02,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2020-10-28 17:17:02,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-28 17:17:02,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 120 transitions. [2020-10-28 17:17:02,437 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 120 transitions. Word has length 89 [2020-10-28 17:17:02,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:17:02,437 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 120 transitions. [2020-10-28 17:17:02,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-28 17:17:02,437 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 120 transitions. [2020-10-28 17:17:02,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-28 17:17:02,438 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:17:02,439 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:17:02,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-28 17:17:02,439 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:17:02,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:17:02,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1165240751, now seen corresponding path program 1 times [2020-10-28 17:17:02,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:17:02,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [12389951] [2020-10-28 17:17:02,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:17:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:02,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:02,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:02,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:02,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:02,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:02,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:02,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:02,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:02,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:02,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:02,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:02,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:02,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:02,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:02,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:02,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:03,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:03,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:03,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:04,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:04,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:04,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:04,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:04,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:07,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-28 17:17:07,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 24 [2020-10-28 17:17:07,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 17:17:07,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:07,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:07,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:17:07,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 17:17:07,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 17:17:07,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:07,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:17:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:07,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:07,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:17:07,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:07,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:17:07,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:07,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:07,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:07,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:07,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:07,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:07,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:17:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:07,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:07,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:08,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-28 17:17:08,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-28 17:17:08,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 890 [2020-10-28 17:17:08,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:08,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:08,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:17:08,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:17:08,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 17:17:08,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:08,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:17:08,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:08,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:08,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-28 17:17:08,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-28 17:17:08,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 478 [2020-10-28 17:17:08,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:08,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:08,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:17:08,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:17:08,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-28 17:17:08,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:08,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:17:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:08,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:08,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 17:17:08,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:17:08,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 17:17:08,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:08,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:08,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:17:08,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:08,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 17:17:08,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:08,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:17:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:08,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:08,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:17:08,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:08,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:17:08,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:08,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:17:08,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:08,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:17:08,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:08,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 17:17:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:08,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:08,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:17:08,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:08,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:17:08,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:08,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:08,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:17:08,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:08,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:17:08,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:08,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 17:17:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:08,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:08,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:17:08,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:08,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:17:08,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:08,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:08,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:08,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 17:17:08,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:08,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:08,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:08,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:08,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:17:08,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:08,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:17:08,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:08,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:08,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:08,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:08,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:08,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:08,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:17:08,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:08,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:17:08,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:08,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:08,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:08,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:08,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:08,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:08,988 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-28 17:17:08,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [12389951] [2020-10-28 17:17:08,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:17:08,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 17:17:08,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399899122] [2020-10-28 17:17:08,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 17:17:08,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:17:08,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 17:17:08,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-28 17:17:08,990 INFO L87 Difference]: Start difference. First operand 97 states and 120 transitions. Second operand 8 states. [2020-10-28 17:17:09,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:17:09,584 INFO L93 Difference]: Finished difference Result 203 states and 278 transitions. [2020-10-28 17:17:09,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 17:17:09,588 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2020-10-28 17:17:09,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:17:09,590 INFO L225 Difference]: With dead ends: 203 [2020-10-28 17:17:09,590 INFO L226 Difference]: Without dead ends: 116 [2020-10-28 17:17:09,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:17:09,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-28 17:17:09,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 110. [2020-10-28 17:17:09,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-28 17:17:09,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 141 transitions. [2020-10-28 17:17:09,603 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 141 transitions. Word has length 76 [2020-10-28 17:17:09,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:17:09,603 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 141 transitions. [2020-10-28 17:17:09,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 17:17:09,604 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 141 transitions. [2020-10-28 17:17:09,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-28 17:17:09,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:17:09,608 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:17:09,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-28 17:17:09,608 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:17:09,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:17:09,609 INFO L82 PathProgramCache]: Analyzing trace with hash -283200290, now seen corresponding path program 1 times [2020-10-28 17:17:09,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:17:09,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [936291492] [2020-10-28 17:17:09,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:17:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:09,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:09,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:09,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:09,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:09,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:09,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:09,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:09,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:10,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:10,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:11,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:11,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:11,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:11,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:11,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:11,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:11,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:11,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:11,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:11,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:11,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:12,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:12,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:14,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:14,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 17:17:14,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-28 17:17:14,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 17:17:14,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:14,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:14,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 17:17:14,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 17:17:14,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 17:17:14,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:14,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:17:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:14,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:14,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:14,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:17:14,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:14,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:17:14,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:14,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:14,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:14,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:14,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:14,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:14,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:17:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:14,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:14,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:14,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:14,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:14,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:14,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:14,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:14,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:14,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:15,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-28 17:17:15,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 17:17:15,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 443 [2020-10-28 17:17:15,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:15,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:15,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 17:17:15,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:17:15,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 17:17:15,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:15,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:17:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:15,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:15,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 17:17:15,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-28 17:17:15,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 587 [2020-10-28 17:17:15,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:15,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:15,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:17:15,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:17:15,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-28 17:17:15,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:15,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:17:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:15,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:15,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 17:17:15,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:15,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:17:15,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:15,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:15,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:17:15,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:15,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:17:15,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:15,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:17:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:15,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:15,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:17:15,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:15,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:17:15,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:15,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:15,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:17:15,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:15,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:17:15,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:15,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 17:17:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:15,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:15,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:17:15,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:15,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:17:15,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:15,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:15,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:17:15,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:15,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:17:15,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:15,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 17:17:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:15,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:15,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 17:17:15,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:15,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:17:15,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:15,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-28 17:17:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:15,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:15,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:15,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:15,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:17:15,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:15,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:17:15,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:15,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:15,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:15,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:15,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:15,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:15,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:15,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:15,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:17:15,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:15,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:17:15,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:15,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:15,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:15,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:15,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:15,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:15,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:15,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:15,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:17:15,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:15,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:17:15,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:15,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:15,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:15,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:15,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:15,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:15,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:15,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:15,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:15,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:17:15,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:15,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:17:15,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:15,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:15,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:15,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:15,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:15,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:15,875 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-28 17:17:15,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [936291492] [2020-10-28 17:17:15,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:17:15,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 17:17:15,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324199975] [2020-10-28 17:17:15,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 17:17:15,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:17:15,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 17:17:15,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:17:15,877 INFO L87 Difference]: Start difference. First operand 110 states and 141 transitions. Second operand 9 states. [2020-10-28 17:17:16,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:17:16,680 INFO L93 Difference]: Finished difference Result 198 states and 273 transitions. [2020-10-28 17:17:16,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 17:17:16,681 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-10-28 17:17:16,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:17:16,682 INFO L225 Difference]: With dead ends: 198 [2020-10-28 17:17:16,682 INFO L226 Difference]: Without dead ends: 125 [2020-10-28 17:17:16,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-10-28 17:17:16,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-28 17:17:16,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2020-10-28 17:17:16,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-28 17:17:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 157 transitions. [2020-10-28 17:17:16,697 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 157 transitions. Word has length 95 [2020-10-28 17:17:16,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:17:16,698 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 157 transitions. [2020-10-28 17:17:16,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 17:17:16,698 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 157 transitions. [2020-10-28 17:17:16,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-28 17:17:16,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:17:16,700 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 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 17:17:16,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-28 17:17:16,700 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:17:16,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:17:16,700 INFO L82 PathProgramCache]: Analyzing trace with hash 995645338, now seen corresponding path program 7 times [2020-10-28 17:17:16,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:17:16,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314809490] [2020-10-28 17:17:16,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:17:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:16,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:17,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:17,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:17:17,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:17,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 710 [2020-10-28 17:17:17,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:17,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:17,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-28 17:17:17,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 17:17:17,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-28 17:17:17,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:17,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:17:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:17,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:17,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:17,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:17:17,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:17,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:17:17,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:17,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:17,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:17,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:17,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:17,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:17,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:17:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:17,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:17,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:17,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:17:17,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:17,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:17:17,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:17,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:17,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:17:17,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:17,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:17:17,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:17,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:17:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:17,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:17,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:17,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:17:17,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:17,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:17:17,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:17,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:17,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:17:17,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:17,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:17:17,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:17,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:17:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:17,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:17,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:17,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 17:17:17,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:17,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-10-28 17:17:17,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:17,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:17,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-28 17:17:17,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:17,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-28 17:17:17,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:17,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:17,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:18,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:18,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 17:17:18,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:18,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-28 17:17:18,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:18,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:18,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:17:18,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:18,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 17:17:18,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:18,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:18,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:18,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:18,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:17:18,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:18,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-28 17:17:18,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:18,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:18,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-28 17:17:18,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:18,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:17:18,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:18,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:18,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:18,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:18,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 17:17:18,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:18,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-28 17:17:18,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:18,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:18,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-28 17:17:18,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:18,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 17:17:18,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:18,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:18,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:18,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:18,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 17:17:18,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:18,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-28 17:17:18,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:18,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:18,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:17:18,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:18,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 17:17:18,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:21,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:21,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:21,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:21,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 17:17:21,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:21,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-28 17:17:21,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:21,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:21,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-28 17:17:21,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:21,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-28 17:17:21,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:21,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:21,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:21,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:21,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:17:21,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:21,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 17:17:21,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:21,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:21,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 17:17:21,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:21,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-28 17:17:21,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:23,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:23,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:23,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:23,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:17:23,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:23,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 17:17:23,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:23,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:23,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:17:23,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:23,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:17:23,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:23,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:23,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:23,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:23,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:17:23,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:23,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:17:23,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:23,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:23,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:17:23,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:23,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:17:23,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:17:23,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:23,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:23,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:23,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:17:23,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:23,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:17:23,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:23,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:17:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:23,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:17:23,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:24,036 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 56 proven. 153 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-10-28 17:17:24,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314809490] [2020-10-28 17:17:24,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:17:24,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-28 17:17:24,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349814667] [2020-10-28 17:17:24,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-28 17:17:24,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:17:24,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-28 17:17:24,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=583, Unknown=2, NotChecked=0, Total=650 [2020-10-28 17:17:24,038 INFO L87 Difference]: Start difference. First operand 121 states and 157 transitions. Second operand 26 states. [2020-10-28 17:17:26,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:17:26,332 INFO L93 Difference]: Finished difference Result 141 states and 182 transitions. [2020-10-28 17:17:26,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 17:17:26,333 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 105 [2020-10-28 17:17:26,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:17:26,336 INFO L225 Difference]: With dead ends: 141 [2020-10-28 17:17:26,336 INFO L226 Difference]: Without dead ends: 136 [2020-10-28 17:17:26,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 21 SyntacticMatches, 7 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=191, Invalid=1787, Unknown=2, NotChecked=0, Total=1980 [2020-10-28 17:17:26,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-28 17:17:26,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 133. [2020-10-28 17:17:26,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-28 17:17:26,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 174 transitions. [2020-10-28 17:17:26,351 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 174 transitions. Word has length 105 [2020-10-28 17:17:26,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:17:26,352 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 174 transitions. [2020-10-28 17:17:26,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-28 17:17:26,352 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 174 transitions. [2020-10-28 17:17:26,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-28 17:17:26,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:17:26,354 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:17:26,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-28 17:17:26,354 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:17:26,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:17:26,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1077147713, now seen corresponding path program 2 times [2020-10-28 17:17:26,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:17:26,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470750724] [2020-10-28 17:17:26,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:17:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:26,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:26,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:26,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:26,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:26,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:26,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:26,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:26,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:26,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:26,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:26,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:26,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:26,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:26,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:26,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:27,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:27,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:27,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:29,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:29,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:29,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:30,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:30,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:31,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-28 17:17:31,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-28 17:17:31,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-28 17:17:31,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:31,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:31,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 17:17:31,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 17:17:31,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-28 17:17:31,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:31,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:17:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:31,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:31,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:17:31,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:31,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:17:31,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:31,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:31,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:31,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:31,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:31,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:31,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:17:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:31,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:31,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:33,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:33,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:33,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:33,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:33,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:33,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:33,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:33,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:33,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:34,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:34,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:34,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:34,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:34,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:34,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:35,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:36,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-28 17:17:36,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 35 [2020-10-28 17:17:36,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 17:17:36,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:36,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:36,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 17:17:36,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 17:17:36,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-28 17:17:36,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:36,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:17:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:36,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:36,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:38,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:38,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:17:38,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 36 [2020-10-28 17:17:38,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2523 [2020-10-28 17:17:38,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:38,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:38,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 17:17:38,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:17:38,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 17:17:38,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:39,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:17:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:39,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:39,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:40,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:40,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 17:17:40,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 34 [2020-10-28 17:17:40,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1834 [2020-10-28 17:17:40,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:40,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:40,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:17:40,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:40,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-28 17:17:40,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:40,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:17:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:40,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:40,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:40,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:40,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:40,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:41,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:41,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 17:17:41,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:17:41,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-28 17:17:41,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:41,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:41,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:17:41,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:41,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:17:41,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:41,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:17:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:41,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:41,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:41,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:17:41,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:41,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:17:41,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:41,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:17:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:17:41,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:41,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 17:17:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:41,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:41,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:41,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:41,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:17:41,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:17:41,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:17:41,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:41,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:41,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:17:41,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:41,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:17:41,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:41,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 17:17:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:41,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:41,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:41,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 17:17:41,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:41,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:17:41,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:41,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:41,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:41,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-28 17:17:41,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:41,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:41,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:41,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:41,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:41,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 17:17:41,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:41,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:17:41,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:41,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:41,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:41,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:41,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:41,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:41,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:41,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:41,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:41,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:17:41,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:41,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:17:41,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:41,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:41,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:41,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:41,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:41,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:41,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:41,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:41,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:41,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:17:41,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:41,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:17:41,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:41,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:41,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:41,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:41,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:41,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:41,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:41,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:41,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:41,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:17:41,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:41,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:17:41,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:41,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:41,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:41,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:41,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:41,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:41,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:17:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:41,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:41,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:41,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:17:41,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:41,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:17:41,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:41,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:41,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:41,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:41,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:41,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:41,286 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 5 proven. 21 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-10-28 17:17:41,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470750724] [2020-10-28 17:17:41,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:17:41,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-28 17:17:41,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346452386] [2020-10-28 17:17:41,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 17:17:41,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:17:41,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 17:17:41,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-28 17:17:41,288 INFO L87 Difference]: Start difference. First operand 133 states and 174 transitions. Second operand 16 states. [2020-10-28 17:17:42,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:17:42,956 INFO L93 Difference]: Finished difference Result 281 states and 400 transitions. [2020-10-28 17:17:42,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 17:17:42,960 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 112 [2020-10-28 17:17:42,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:17:42,963 INFO L225 Difference]: With dead ends: 281 [2020-10-28 17:17:42,963 INFO L226 Difference]: Without dead ends: 158 [2020-10-28 17:17:42,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2020-10-28 17:17:42,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-28 17:17:42,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 135. [2020-10-28 17:17:42,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-28 17:17:42,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 176 transitions. [2020-10-28 17:17:42,983 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 176 transitions. Word has length 112 [2020-10-28 17:17:42,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:17:42,984 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 176 transitions. [2020-10-28 17:17:42,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 17:17:42,984 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 176 transitions. [2020-10-28 17:17:42,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-28 17:17:42,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:17:42,986 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:17:42,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-28 17:17:42,986 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:17:42,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:17:42,986 INFO L82 PathProgramCache]: Analyzing trace with hash -808501150, now seen corresponding path program 1 times [2020-10-28 17:17:42,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:17:42,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051501391] [2020-10-28 17:17:42,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:17:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:43,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:43,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:43,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:43,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:43,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:43,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:43,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:43,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:43,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:43,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:43,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:43,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:43,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:43,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:43,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:43,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:44,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:46,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:46,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:46,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:46,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:46,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:46,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:46,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:46,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:46,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:46,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:48,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 17:17:48,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 27 [2020-10-28 17:17:48,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 17:17:48,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:48,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:48,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:17:48,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 17:17:48,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:17:48,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:48,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:17:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:48,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:48,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:17:48,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:17:48,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:17:48,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:48,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:48,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:17:48,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:17:48,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:17:48,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:48,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:17:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:48,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:48,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:49,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:49,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:49,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:49,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:49,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:50,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:50,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:50,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:50,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:50,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:50,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:51,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:53,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:17:53,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 34 [2020-10-28 17:17:53,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 17:17:53,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:53,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:53,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:17:53,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:17:53,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-28 17:17:53,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:53,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:17:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:53,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:53,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:54,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:54,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:54,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:54,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:54,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:54,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:54,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:54,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:54,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:54,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:54,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:54,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:17:58,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-28 17:17:58,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 34 [2020-10-28 17:17:58,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 17:17:58,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:17:58,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:17:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:17:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:17:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 17:17:58,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:17:58,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:17:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:17:58,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:58,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:59,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:59,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:59,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:59,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:59,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:17:59,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:00,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:01,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:01,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:01,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:01,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:02,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:02,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-28 17:18:02,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 46 [2020-10-28 17:18:02,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4842 [2020-10-28 17:18:02,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:02,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:02,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 17:18:02,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:02,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-28 17:18:02,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:02,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:18:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:02,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:02,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:02,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:02,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:02,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:02,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:02,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:02,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:03,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:03,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:03,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:03,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:03,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:03,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:03,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:03,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:03,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:03,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:03,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:03,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:03,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:03,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:04,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-28 17:18:04,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 22 [2020-10-28 17:18:04,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1341 [2020-10-28 17:18:04,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:04,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:04,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:18:04,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:04,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-28 17:18:04,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:04,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:18:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:04,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:04,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 17:18:04,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-28 17:18:04,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-10-28 17:18:04,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:04,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:04,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:18:04,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:04,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:18:04,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:18:04,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:18:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:04,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:04,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:18:04,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:04,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:18:04,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:04,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:04,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:18:04,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:04,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:18:04,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:04,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-28 17:18:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:04,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:04,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:18:04,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:04,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:18:04,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:04,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:04,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:18:04,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:04,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:18:04,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:04,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 17:18:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:04,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:04,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:18:04,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:04,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:18:04,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:04,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:04,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:18:04,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 17:18:04,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:18:04,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:04,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:04,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:04,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:18:04,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:04,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:18:04,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:04,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:04,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:18:04,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:04,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:18:04,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:04,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:04,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:04,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:04,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:18:04,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:04,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 17:18:04,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:04,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:04,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:18:04,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:04,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:18:04,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:04,873 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-28 17:18:04,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051501391] [2020-10-28 17:18:04,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:18:04,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-28 17:18:04,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020877108] [2020-10-28 17:18:04,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 17:18:04,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:18:04,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 17:18:04,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-28 17:18:04,875 INFO L87 Difference]: Start difference. First operand 135 states and 176 transitions. Second operand 14 states. [2020-10-28 17:18:07,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:18:07,282 INFO L93 Difference]: Finished difference Result 295 states and 457 transitions. [2020-10-28 17:18:07,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-28 17:18:07,282 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 95 [2020-10-28 17:18:07,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:18:07,285 INFO L225 Difference]: With dead ends: 295 [2020-10-28 17:18:07,285 INFO L226 Difference]: Without dead ends: 171 [2020-10-28 17:18:07,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=212, Invalid=718, Unknown=0, NotChecked=0, Total=930 [2020-10-28 17:18:07,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-28 17:18:07,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 156. [2020-10-28 17:18:07,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-28 17:18:07,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 210 transitions. [2020-10-28 17:18:07,303 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 210 transitions. Word has length 95 [2020-10-28 17:18:07,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:18:07,304 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 210 transitions. [2020-10-28 17:18:07,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 17:18:07,304 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 210 transitions. [2020-10-28 17:18:07,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-28 17:18:07,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:18:07,306 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 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 17:18:07,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-28 17:18:07,307 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:18:07,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:18:07,307 INFO L82 PathProgramCache]: Analyzing trace with hash 16580186, now seen corresponding path program 8 times [2020-10-28 17:18:07,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:18:07,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91638008] [2020-10-28 17:18:07,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:18:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:07,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:08,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:08,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-28 17:18:08,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:08,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1253 [2020-10-28 17:18:08,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:08,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-28 17:18:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 17:18:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-28 17:18:08,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:08,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:18:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:08,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:08,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:08,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:18:08,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:08,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:18:08,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:08,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:08,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:18:08,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:08,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:18:08,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:08,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:18:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:08,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:08,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:08,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:18:08,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:08,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:18:08,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:08,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:08,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:18:08,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:08,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:18:08,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:08,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:18:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:08,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:08,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:08,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:18:08,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:08,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:18:08,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:08,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:08,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:18:08,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:08,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:18:08,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:08,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:18:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:08,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:09,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:09,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:18:09,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:09,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-10-28 17:18:09,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:09,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:09,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-28 17:18:09,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:09,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 17:18:09,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:09,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:09,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:09,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:09,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 17:18:09,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:09,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-10-28 17:18:09,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:09,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:09,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-28 17:18:09,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:09,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:18:09,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:09,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:09,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:10,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:10,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 17:18:10,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:10,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-10-28 17:18:10,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:10,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:10,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-28 17:18:10,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:10,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-28 17:18:10,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:10,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:10,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:10,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:10,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 17:18:10,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:10,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-28 17:18:10,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:10,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:10,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-28 17:18:10,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:10,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 17:18:10,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:10,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:10,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:11,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:11,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:18:11,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:11,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-28 17:18:11,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:11,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:11,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-28 17:18:11,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:11,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:18:11,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:11,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:11,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:11,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:11,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 17:18:11,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:11,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-28 17:18:11,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:11,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:11,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-28 17:18:11,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:11,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:18:11,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:11,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:11,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:11,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:11,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 17:18:11,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:11,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-28 17:18:11,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:11,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-28 17:18:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:11,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 17:18:11,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:11,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:11,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:11,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:11,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 17:18:11,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:11,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 17:18:11,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:11,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:11,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-28 17:18:11,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:11,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-28 17:18:11,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:12,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:12,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:12,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:12,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:18:12,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:12,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 17:18:12,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:12,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:12,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 17:18:12,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:12,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:18:12,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:12,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:12,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:12,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:12,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:18:12,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:12,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 17:18:12,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:12,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:12,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 17:18:12,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:12,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:18:12,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:12,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:12,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:12,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:12,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:18:12,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:12,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:18:12,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:12,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:12,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:18:12,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:12,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:18:12,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:12,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:12,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:12,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:12,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:18:12,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:12,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:18:12,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:12,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:12,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:18:12,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:12,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:18:12,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:12,680 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 40 proven. 217 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2020-10-28 17:18:12,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91638008] [2020-10-28 17:18:12,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:18:12,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-28 17:18:12,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847655626] [2020-10-28 17:18:12,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-28 17:18:12,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:18:12,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-28 17:18:12,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1039, Unknown=0, NotChecked=0, Total=1122 [2020-10-28 17:18:12,682 INFO L87 Difference]: Start difference. First operand 156 states and 210 transitions. Second operand 34 states. [2020-10-28 17:18:16,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:18:16,332 INFO L93 Difference]: Finished difference Result 176 states and 234 transitions. [2020-10-28 17:18:16,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-28 17:18:16,333 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 121 [2020-10-28 17:18:16,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:18:16,336 INFO L225 Difference]: With dead ends: 176 [2020-10-28 17:18:16,336 INFO L226 Difference]: Without dead ends: 171 [2020-10-28 17:18:16,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 817 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=289, Invalid=3871, Unknown=0, NotChecked=0, Total=4160 [2020-10-28 17:18:16,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-28 17:18:16,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 168. [2020-10-28 17:18:16,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-10-28 17:18:16,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 226 transitions. [2020-10-28 17:18:16,354 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 226 transitions. Word has length 121 [2020-10-28 17:18:16,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:18:16,355 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 226 transitions. [2020-10-28 17:18:16,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-28 17:18:16,355 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 226 transitions. [2020-10-28 17:18:16,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-28 17:18:16,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:18:16,358 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:18:16,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-28 17:18:16,358 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:18:16,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:18:16,358 INFO L82 PathProgramCache]: Analyzing trace with hash -681318561, now seen corresponding path program 2 times [2020-10-28 17:18:16,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:18:16,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629558724] [2020-10-28 17:18:16,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:18:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:16,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:16,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:16,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:16,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:16,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:16,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:16,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:16,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:16,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:16,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:17,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:17,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:17,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:17,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:17,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:17,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:18,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:18,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:19,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:21,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-28 17:18:21,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-28 17:18:21,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 17:18:21,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:21,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:21,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:18:21,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-28 17:18:21,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:18:21,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:21,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:18:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:21,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:21,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:18:21,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:21,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:18:21,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:21,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:18:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:18:21,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:21,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:18:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:21,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:21,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:22,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:22,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:22,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:22,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:22,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:22,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:25,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:25,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 17:18:25,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 22 [2020-10-28 17:18:25,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4074 [2020-10-28 17:18:25,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:25,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:18:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-28 17:18:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:18:25,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:25,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:18:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:25,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:25,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:25,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:25,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:25,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:25,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:25,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:25,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:25,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:25,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:25,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:25,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:26,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:26,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:26,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:26,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:26,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:26,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:26,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:27,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:27,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:27,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:30,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:30,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 17:18:30,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 22 [2020-10-28 17:18:30,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 17:18:30,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:30,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:30,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:18:30,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 17:18:30,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:18:30,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:30,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:18:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:30,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:30,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:30,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:30,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-28 17:18:30,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:18:30,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-28 17:18:30,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:30,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:30,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:18:30,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 17:18:30,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:18:30,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:30,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:18:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:30,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:30,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:30,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:30,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-28 17:18:30,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:18:30,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 17:18:30,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:30,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:30,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:18:30,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 17:18:30,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:18:30,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:30,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:18:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:30,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:30,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:30,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:30,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-28 17:18:30,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:18:30,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-28 17:18:30,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:30,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:18:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:18:30,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:18:30,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:30,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 17:18:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:30,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:30,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:30,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:30,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 17:18:30,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:18:30,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:18:30,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:30,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:18:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:30,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:18:30,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:30,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 17:18:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:30,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:30,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:30,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:30,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:18:30,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:18:30,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:18:30,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:30,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:30,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:18:30,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:30,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:18:30,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:30,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 17:18:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:30,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:30,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:30,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:18:30,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:30,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:18:30,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:30,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:30,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:18:30,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:18:30,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:18:30,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:30,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-28 17:18:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:30,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:30,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:30,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 17:18:30,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:30,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:18:30,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:30,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:30,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:18:30,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-28 17:18:30,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:18:30,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:30,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:30,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:30,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:30,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 17:18:30,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:30,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:18:30,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:30,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:30,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:18:30,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:30,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:18:30,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:30,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:30,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:30,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:30,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 17:18:30,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:30,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:18:30,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:30,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:18:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:18:30,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:31,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:31,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:31,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:31,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:18:31,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:31,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:18:31,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:31,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:31,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:18:31,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:31,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:18:31,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:31,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:31,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:31,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:31,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:18:31,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:31,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:18:31,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:31,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:18:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:18:31,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:31,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:31,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:31,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:31,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:18:31,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:31,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:18:31,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:31,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:18:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:18:31,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:31,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:31,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:31,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:31,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:18:31,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:31,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:18:31,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:31,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:31,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:18:31,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:31,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:18:31,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:31,047 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 36 proven. 19 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-28 17:18:31,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629558724] [2020-10-28 17:18:31,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:18:31,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-28 17:18:31,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120399021] [2020-10-28 17:18:31,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 17:18:31,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:18:31,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 17:18:31,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-28 17:18:31,049 INFO L87 Difference]: Start difference. First operand 168 states and 226 transitions. Second operand 11 states. [2020-10-28 17:18:31,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:18:31,855 INFO L93 Difference]: Finished difference Result 302 states and 420 transitions. [2020-10-28 17:18:31,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 17:18:31,856 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-10-28 17:18:31,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:18:31,857 INFO L225 Difference]: With dead ends: 302 [2020-10-28 17:18:31,858 INFO L226 Difference]: Without dead ends: 86 [2020-10-28 17:18:31,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-28 17:18:31,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-28 17:18:31,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-10-28 17:18:31,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-28 17:18:31,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 88 transitions. [2020-10-28 17:18:31,865 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 88 transitions. Word has length 136 [2020-10-28 17:18:31,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:18:31,865 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 88 transitions. [2020-10-28 17:18:31,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 17:18:31,865 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 88 transitions. [2020-10-28 17:18:31,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-28 17:18:31,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:18:31,867 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 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 17:18:31,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-28 17:18:31,867 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:18:31,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:18:31,868 INFO L82 PathProgramCache]: Analyzing trace with hash 470357274, now seen corresponding path program 9 times [2020-10-28 17:18:31,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:18:31,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [575389025] [2020-10-28 17:18:31,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:18:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:31,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:33,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:33,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-28 17:18:33,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:33,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1574 [2020-10-28 17:18:33,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:33,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:33,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-10-28 17:18:33,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 17:18:33,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-28 17:18:33,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:33,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:18:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:33,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:33,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:33,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:18:33,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:33,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:18:33,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:33,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:33,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:18:33,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:33,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:18:33,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:18:33,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:18:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:33,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:33,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:33,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:18:33,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:33,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:18:33,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:33,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:33,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:18:33,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:33,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:18:33,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:33,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:18:33,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:33,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:33,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:33,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:18:33,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:33,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:18:33,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:33,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:33,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:18:33,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:33,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:18:33,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:33,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:18:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:33,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:34,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:34,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 17:18:34,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:34,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 893 [2020-10-28 17:18:34,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:34,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:34,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-28 17:18:34,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:34,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-28 17:18:34,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:34,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:34,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:35,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:35,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 17:18:35,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:35,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 758 [2020-10-28 17:18:35,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:35,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:35,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-28 17:18:35,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:35,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-28 17:18:35,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:35,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:35,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:36,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:36,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:18:36,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:36,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 668 [2020-10-28 17:18:36,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:36,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:36,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-28 17:18:36,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:36,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-28 17:18:36,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:36,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:36,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:36,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:36,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 17:18:36,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:36,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-10-28 17:18:36,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:36,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:36,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-28 17:18:36,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:36,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:18:36,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:36,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:36,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:37,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:37,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 17:18:37,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:37,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 450 [2020-10-28 17:18:37,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:37,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:37,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-28 17:18:37,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:37,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-28 17:18:37,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:37,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:37,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:37,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:37,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 17:18:37,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:37,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-10-28 17:18:37,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:37,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:37,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-28 17:18:37,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:37,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 17:18:37,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:37,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:37,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:38,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:38,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:18:38,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:38,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-28 17:18:38,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:38,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-28 17:18:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:18:38,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:38,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:38,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:38,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:38,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 17:18:38,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:38,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-28 17:18:38,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:38,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:38,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-28 17:18:38,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:38,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:18:38,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:38,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:38,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:38,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:38,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 17:18:38,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:38,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-28 17:18:38,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:38,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:38,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-28 17:18:38,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:38,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 17:18:38,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:38,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:38,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:38,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:38,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 17:18:38,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:38,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-28 17:18:38,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:38,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-28 17:18:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-28 17:18:38,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:39,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:39,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:39,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:39,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:18:39,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:39,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 17:18:39,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:39,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:39,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 17:18:39,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:39,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:18:39,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:18:39,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:39,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:39,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:39,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:18:39,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:39,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 17:18:39,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:39,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:39,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 17:18:39,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:39,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:18:39,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:39,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:39,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:39,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:39,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:18:39,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:39,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:18:39,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:39,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:39,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:18:39,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:39,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:18:39,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:39,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:39,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:39,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:39,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:18:39,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:39,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:18:39,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:39,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:39,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:18:39,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:39,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:18:39,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:18:39,822 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 48 proven. 296 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2020-10-28 17:18:39,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [575389025] [2020-10-28 17:18:39,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:18:39,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-28 17:18:39,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875439849] [2020-10-28 17:18:39,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-28 17:18:39,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:18:39,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-28 17:18:39,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1320, Unknown=0, NotChecked=0, Total=1406 [2020-10-28 17:18:39,824 INFO L87 Difference]: Start difference. First operand 86 states and 88 transitions. Second operand 38 states. [2020-10-28 17:18:44,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:18:44,319 INFO L93 Difference]: Finished difference Result 97 states and 99 transitions. [2020-10-28 17:18:44,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-28 17:18:44,324 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 137 [2020-10-28 17:18:44,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:18:44,326 INFO L225 Difference]: With dead ends: 97 [2020-10-28 17:18:44,326 INFO L226 Difference]: Without dead ends: 92 [2020-10-28 17:18:44,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 874 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=300, Invalid=4956, Unknown=0, NotChecked=0, Total=5256 [2020-10-28 17:18:44,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-28 17:18:44,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-10-28 17:18:44,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-28 17:18:44,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 94 transitions. [2020-10-28 17:18:44,334 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 94 transitions. Word has length 137 [2020-10-28 17:18:44,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:18:44,335 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 94 transitions. [2020-10-28 17:18:44,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-28 17:18:44,335 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 94 transitions. [2020-10-28 17:18:44,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-28 17:18:44,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:18:44,337 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 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 17:18:44,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-28 17:18:44,337 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:18:44,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:18:44,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1745326746, now seen corresponding path program 10 times [2020-10-28 17:18:44,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:18:44,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1110179852] [2020-10-28 17:18:44,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:18:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:44,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:46,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:46,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-28 17:18:46,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:46,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2377 [2020-10-28 17:18:46,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:46,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:46,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 75 [2020-10-28 17:18:46,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 17:18:46,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-28 17:18:46,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:46,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:18:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:46,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:46,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:46,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:18:46,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:46,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:18:46,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:46,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:46,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:18:46,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:46,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:18:46,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:46,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:18:46,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:46,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:46,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:46,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:18:46,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:46,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:18:46,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:46,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:46,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:18:46,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:46,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:18:46,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:46,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:18:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:46,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:46,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:46,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:18:46,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:46,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:18:46,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:46,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:46,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:18:46,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:46,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:18:46,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:46,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:18:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:46,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:48,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:48,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-28 17:18:48,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:48,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1674 [2020-10-28 17:18:48,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:48,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-28 17:18:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 17:18:48,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:48,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:48,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:49,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:49,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-28 17:18:49,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:49,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1309 [2020-10-28 17:18:49,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:49,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:49,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 67 [2020-10-28 17:18:49,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:49,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-28 17:18:49,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-28 17:18:50,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:50,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:51,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:51,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:18:51,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:51,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1274 [2020-10-28 17:18:51,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:51,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:51,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 64 [2020-10-28 17:18:51,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:51,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-28 17:18:51,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:51,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:51,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:52,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:52,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-28 17:18:52,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:52,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1034 [2020-10-28 17:18:52,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:52,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 60 [2020-10-28 17:18:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-28 17:18:52,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:52,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:52,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:53,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:53,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 17:18:53,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:53,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1084 [2020-10-28 17:18:53,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:53,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 56 [2020-10-28 17:18:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-28 17:18:53,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:53,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:53,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:54,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:54,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 17:18:54,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:54,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 739 [2020-10-28 17:18:54,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:54,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:54,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-10-28 17:18:54,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:54,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-28 17:18:54,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:54,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:54,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:55,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:55,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:18:55,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:55,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 605 [2020-10-28 17:18:55,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:55,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:55,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-28 17:18:55,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:55,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-28 17:18:55,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:55,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:55,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:56,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:56,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 17:18:56,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:56,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-10-28 17:18:56,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:56,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:56,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-28 17:18:56,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:56,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:18:56,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:56,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:56,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:56,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:56,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 17:18:56,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:56,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-10-28 17:18:56,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:56,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:56,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-28 17:18:56,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:56,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-28 17:18:56,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:56,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:56,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:56,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:56,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 17:18:56,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:56,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-10-28 17:18:56,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:56,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:56,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-28 17:18:56,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:56,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 17:18:56,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:57,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:57,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:57,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:57,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:18:57,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:57,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-10-28 17:18:57,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:57,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:57,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-28 17:18:57,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:57,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 17:18:57,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:18:57,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:57,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:57,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:57,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 17:18:57,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:57,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-28 17:18:57,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:57,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:57,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-28 17:18:57,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:57,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:18:57,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:58,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:58,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:58,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:58,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:58,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 17:18:58,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:58,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-28 17:18:58,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:58,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-28 17:18:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:58,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 17:18:58,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:58,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:58,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:58,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:58,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 17:18:58,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:58,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-28 17:18:58,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:58,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:58,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-28 17:18:58,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:58,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-28 17:18:58,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:58,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:58,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:58,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:58,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:18:58,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:58,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 17:18:58,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:58,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 17:18:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 17:18:58,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:58,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:58,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:58,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:58,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 17:18:58,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:58,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 17:18:58,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:58,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:58,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 17:18:58,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:58,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:18:58,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:59,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:59,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:59,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:59,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 17:18:59,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:59,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:18:59,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:59,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:18:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:59,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 17:18:59,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:18:59,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:18:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:18:59,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:18:59,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:18:59,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 17:18:59,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:18:59,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:18:59,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:18:59,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:18:59,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:18:59,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:18:59,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:18:59,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:18:59,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 64 proven. 490 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2020-10-28 17:18:59,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1110179852] [2020-10-28 17:18:59,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:18:59,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2020-10-28 17:18:59,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99353289] [2020-10-28 17:18:59,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-10-28 17:18:59,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:18:59,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-10-28 17:18:59,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1953, Unknown=0, NotChecked=0, Total=2070 [2020-10-28 17:18:59,488 INFO L87 Difference]: Start difference. First operand 92 states and 94 transitions. Second operand 46 states. [2020-10-28 17:19:05,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:19:05,632 INFO L93 Difference]: Finished difference Result 109 states and 111 transitions. [2020-10-28 17:19:05,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-28 17:19:05,633 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 169 [2020-10-28 17:19:05,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:19:05,635 INFO L225 Difference]: With dead ends: 109 [2020-10-28 17:19:05,635 INFO L226 Difference]: Without dead ends: 104 [2020-10-28 17:19:05,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1725 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=431, Invalid=7401, Unknown=0, NotChecked=0, Total=7832 [2020-10-28 17:19:05,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-28 17:19:05,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-28 17:19:05,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-28 17:19:05,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 106 transitions. [2020-10-28 17:19:05,646 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 106 transitions. Word has length 169 [2020-10-28 17:19:05,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:19:05,646 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 106 transitions. [2020-10-28 17:19:05,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-10-28 17:19:05,646 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 106 transitions. [2020-10-28 17:19:05,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-28 17:19:05,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:19:05,649 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 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 17:19:05,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-28 17:19:05,650 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:19:05,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:19:05,650 INFO L82 PathProgramCache]: Analyzing trace with hash 156367194, now seen corresponding path program 11 times [2020-10-28 17:19:05,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:19:05,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121988847] [2020-10-28 17:19:05,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:19:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:19:05,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:19:08,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:19:08,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-28 17:19:08,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:19:08,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3260 [2020-10-28 17:19:08,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:19:08,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:19:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 83 [2020-10-28 17:19:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 17:19:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 219 [2020-10-28 17:19:08,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:19:09,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:19:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:19:09,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:19:09,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:19:09,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:19:09,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:19:09,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:19:09,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:19:09,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:19:09,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:19:09,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:19:09,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:19:09,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:19:09,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 17:19:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:19:09,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:19:09,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:19:09,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:19:09,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:19:09,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:19:09,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:19:09,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:19:09,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:19:09,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:19:09,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 17:19:09,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:19:09,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 17:19:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:19:09,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:19:09,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:19:09,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:19:09,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:19:09,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:19:09,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:19:09,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:19:09,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:19:09,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:19:09,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:19:09,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:19:09,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 17:19:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:19:09,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:19:11,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:19:11,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-28 17:19:11,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:19:11,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2105 [2020-10-28 17:19:11,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:19:11,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:19:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 78 [2020-10-28 17:19:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:19:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-28 17:19:11,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:19:11,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:19:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:19:11,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:19:13,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:19:13,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-28 17:19:13,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:19:13,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2132 [2020-10-28 17:19:13,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:19:13,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:19:13,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 75 [2020-10-28 17:19:13,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:19:13,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-28 17:19:13,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:19:13,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:19:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:19:13,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:19:15,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:19:15,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-28 17:19:15,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:19:15,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1858 [2020-10-28 17:19:15,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:19:15,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:19:15,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 72 [2020-10-28 17:19:15,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:19:15,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-28 17:19:15,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:19:15,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:19:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:19:15,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:19:17,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:19:17,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-28 17:19:17,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:19:17,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1514 [2020-10-28 17:19:17,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:19:17,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:19:17,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 68 [2020-10-28 17:19:17,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:19:17,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-28 17:19:17,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:19:17,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:19:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:19:17,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:19:18,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:19:18,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:19:18,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:19:18,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1412 [2020-10-28 17:19:18,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:19:18,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:19:18,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 64 [2020-10-28 17:19:18,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:19:18,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-28 17:19:18,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:19:18,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 17:19:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:19:18,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking...