/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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/recursive-simple/fibo_5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 04:05:15,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 04:05:15,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 04:05:15,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 04:05:15,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 04:05:15,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 04:05:15,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 04:05:15,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 04:05:15,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 04:05:15,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 04:05:15,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 04:05:15,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 04:05:15,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 04:05:15,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 04:05:15,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 04:05:15,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 04:05:15,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 04:05:15,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 04:05:15,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 04:05:15,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 04:05:15,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 04:05:15,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 04:05:15,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 04:05:15,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 04:05:15,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 04:05:15,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 04:05:15,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 04:05:15,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 04:05:15,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 04:05:15,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 04:05:15,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 04:05:15,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 04:05:15,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 04:05:15,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 04:05:15,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 04:05:15,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 04:05:15,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 04:05:15,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 04:05:15,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 04:05:15,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 04:05:15,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 04:05:15,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 04:05:16,002 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 04:05:16,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 04:05:16,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 04:05:16,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 04:05:16,005 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 04:05:16,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 04:05:16,007 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 04:05:16,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 04:05:16,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 04:05:16,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 04:05:16,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 04:05:16,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 04:05:16,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 04:05:16,010 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 04:05:16,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 04:05:16,010 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 04:05:16,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 04:05:16,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 04:05:16,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 04:05:16,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 04:05:16,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 04:05:16,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:05:16,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 04:05:16,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 04:05:16,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 04:05:16,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 04:05:16,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 04:05:16,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 04:05:16,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 04:05:16,013 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 04:05:16,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 04:05:16,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 04:05:16,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 04:05:16,455 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 04:05:16,456 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 04:05:16,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_5-1.c [2020-10-27 04:05:16,540 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad91b2ac8/fcf00fbc28a1444295a08cf1f3da1968/FLAGcbe5d0c54 [2020-10-27 04:05:17,283 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 04:05:17,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_5-1.c [2020-10-27 04:05:17,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad91b2ac8/fcf00fbc28a1444295a08cf1f3da1968/FLAGcbe5d0c54 [2020-10-27 04:05:17,653 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad91b2ac8/fcf00fbc28a1444295a08cf1f3da1968 [2020-10-27 04:05:17,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 04:05:17,663 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 04:05:17,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 04:05:17,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 04:05:17,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 04:05:17,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:05:17" (1/1) ... [2020-10-27 04:05:17,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12579b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:17, skipping insertion in model container [2020-10-27 04:05:17,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:05:17" (1/1) ... [2020-10-27 04:05:17,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 04:05:17,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 04:05:17,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:05:17,912 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 04:05:17,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:05:17,945 INFO L208 MainTranslator]: Completed translation [2020-10-27 04:05:17,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:17 WrapperNode [2020-10-27 04:05:17,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 04:05:17,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 04:05:17,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 04:05:17,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 04:05:17,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:17" (1/1) ... [2020-10-27 04:05:17,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:17" (1/1) ... [2020-10-27 04:05:17,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:17" (1/1) ... [2020-10-27 04:05:17,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:17" (1/1) ... [2020-10-27 04:05:17,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:17" (1/1) ... [2020-10-27 04:05:17,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:17" (1/1) ... [2020-10-27 04:05:17,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:17" (1/1) ... [2020-10-27 04:05:17,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 04:05:17,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 04:05:17,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 04:05:17,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 04:05:17,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:05:18,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 04:05:18,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 04:05:18,057 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 04:05:18,057 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-10-27 04:05:18,057 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 04:05:18,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 04:05:18,057 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 04:05:18,058 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 04:05:18,058 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 04:05:18,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 04:05:18,058 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-10-27 04:05:18,058 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 04:05:18,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 04:05:18,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 04:05:18,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 04:05:18,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 04:05:18,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 04:05:18,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 04:05:18,318 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 04:05:18,318 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 04:05:18,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:05:18 BoogieIcfgContainer [2020-10-27 04:05:18,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 04:05:18,323 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 04:05:18,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 04:05:18,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 04:05:18,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:05:17" (1/3) ... [2020-10-27 04:05:18,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6444fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:05:18, skipping insertion in model container [2020-10-27 04:05:18,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:05:17" (2/3) ... [2020-10-27 04:05:18,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6444fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:05:18, skipping insertion in model container [2020-10-27 04:05:18,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:05:18" (3/3) ... [2020-10-27 04:05:18,331 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_5-1.c [2020-10-27 04:05:18,346 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 04:05:18,355 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 04:05:18,405 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 04:05:18,445 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 04:05:18,445 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 04:05:18,445 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 04:05:18,445 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 04:05:18,446 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 04:05:18,446 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 04:05:18,446 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 04:05:18,446 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 04:05:18,469 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-27 04:05:18,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 04:05:18,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:05:18,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:05:18,479 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:05:18,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:05:18,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1708859500, now seen corresponding path program 1 times [2020-10-27 04:05:18,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:05:18,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295191810] [2020-10-27 04:05:18,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:05:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:18,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:18,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:18,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 04:05:18,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:18,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-27 04:05:18,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:18,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:05:18,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:05:18,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:05:18,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:05:19,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:05:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:19,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:19,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:19,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:05:19,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:19,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 04:05:19,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:19,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:19,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:19,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 04:05:19,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:05:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:19,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:19,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:19,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:19,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:19,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:05:19,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:19,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:05:19,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:05:19,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:05:19,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:19,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:05:19,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [295191810] [2020-10-27 04:05:19,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:05:19,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 04:05:19,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229097464] [2020-10-27 04:05:19,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 04:05:19,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:05:19,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 04:05:19,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 04:05:19,293 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2020-10-27 04:05:19,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:05:19,597 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2020-10-27 04:05:19,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 04:05:19,599 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-27 04:05:19,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:05:19,609 INFO L225 Difference]: With dead ends: 41 [2020-10-27 04:05:19,609 INFO L226 Difference]: Without dead ends: 23 [2020-10-27 04:05:19,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-27 04:05:19,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-27 04:05:19,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-27 04:05:19,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-27 04:05:19,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-10-27 04:05:19,664 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 15 [2020-10-27 04:05:19,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:05:19,664 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-10-27 04:05:19,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 04:05:19,665 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-10-27 04:05:19,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-27 04:05:19,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:05:19,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:05:19,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 04:05:19,667 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:05:19,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:05:19,668 INFO L82 PathProgramCache]: Analyzing trace with hash 2119969838, now seen corresponding path program 1 times [2020-10-27 04:05:19,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:05:19,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [414358482] [2020-10-27 04:05:19,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:05:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:19,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:19,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:19,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:05:19,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:19,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-27 04:05:19,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:19,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:05:19,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:05:19,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:05:19,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:19,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:05:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:19,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:19,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:19,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:05:19,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:19,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 04:05:19,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:19,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:19,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:19,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:19,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:19,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:05:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:19,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:19,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:19,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:05:19,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:19,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 04:05:19,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:19,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:05:19,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:05:19,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:05:19,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:19,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 04:05:19,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [414358482] [2020-10-27 04:05:19,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:05:19,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 04:05:19,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996441598] [2020-10-27 04:05:19,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 04:05:19,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:05:19,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 04:05:19,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 04:05:19,999 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 6 states. [2020-10-27 04:05:20,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:05:20,239 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2020-10-27 04:05:20,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 04:05:20,240 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-27 04:05:20,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:05:20,242 INFO L225 Difference]: With dead ends: 30 [2020-10-27 04:05:20,242 INFO L226 Difference]: Without dead ends: 25 [2020-10-27 04:05:20,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-27 04:05:20,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-27 04:05:20,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2020-10-27 04:05:20,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-27 04:05:20,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-10-27 04:05:20,253 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2020-10-27 04:05:20,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:05:20,253 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-10-27 04:05:20,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 04:05:20,254 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-10-27 04:05:20,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-27 04:05:20,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:05:20,256 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:05:20,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 04:05:20,256 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:05:20,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:05:20,257 INFO L82 PathProgramCache]: Analyzing trace with hash -308126725, now seen corresponding path program 1 times [2020-10-27 04:05:20,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:05:20,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363630901] [2020-10-27 04:05:20,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:05:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:20,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:20,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:20,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:21,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:21,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-27 04:05:21,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:05:21,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 737 [2020-10-27 04:05:21,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:21,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:05:21,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:05:21,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 04:05:21,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:05:21,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:05:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:21,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:21,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:21,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:05:21,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:21,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:05:21,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:21,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:21,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:21,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:21,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:21,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:05:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:21,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:21,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:21,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:21,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:21,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:05:21,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:05:21,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-27 04:05:21,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:21,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:05:21,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:05:21,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:05:21,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:21,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:21,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:21,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:21,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:21,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:21,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 04:05:21,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:05:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:05:21,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:05:21,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 04:05:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:21,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:21,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:21,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:21,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:21,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:05:21,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:21,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:21,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:21,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:05:21,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:21,359 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 04:05:21,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363630901] [2020-10-27 04:05:21,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:05:21,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 04:05:21,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168891736] [2020-10-27 04:05:21,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 04:05:21,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:05:21,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 04:05:21,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 04:05:21,362 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 8 states. [2020-10-27 04:05:21,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:05:21,699 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2020-10-27 04:05:21,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 04:05:21,700 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-10-27 04:05:21,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:05:21,702 INFO L225 Difference]: With dead ends: 35 [2020-10-27 04:05:21,702 INFO L226 Difference]: Without dead ends: 30 [2020-10-27 04:05:21,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-27 04:05:21,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-27 04:05:21,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-10-27 04:05:21,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-27 04:05:21,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-10-27 04:05:21,714 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 28 [2020-10-27 04:05:21,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:05:21,715 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-10-27 04:05:21,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 04:05:21,715 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-10-27 04:05:21,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-27 04:05:21,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:05:21,720 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:05:21,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 04:05:21,720 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:05:21,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:05:21,721 INFO L82 PathProgramCache]: Analyzing trace with hash 977084561, now seen corresponding path program 1 times [2020-10-27 04:05:21,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:05:21,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155922906] [2020-10-27 04:05:21,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:05:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:21,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:21,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:21,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:22,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:22,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:22,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-27 04:05:22,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:05:22,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 671 [2020-10-27 04:05:22,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:22,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:05:22,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:05:22,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 04:05:22,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:22,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:05:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:22,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:22,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:22,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:05:22,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:22,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:05:22,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:22,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:22,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:22,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:22,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:22,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:05:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:22,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:22,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:22,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:22,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:22,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:22,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 04:05:22,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:05:22,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-27 04:05:22,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:22,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:05:22,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:05:22,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 04:05:22,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:22,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:22,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:22,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:22,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:05:22,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:22,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:05:22,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:22,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:22,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:22,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:05:22,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:22,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:05:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:22,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:22,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:22,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:05:22,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:22,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:05:22,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:22,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:05:22,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:22,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:05:22,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:22,797 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 04:05:22,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1155922906] [2020-10-27 04:05:22,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:05:22,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 04:05:22,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171091048] [2020-10-27 04:05:22,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 04:05:22,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:05:22,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 04:05:22,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 04:05:22,802 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand 7 states. [2020-10-27 04:05:23,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:05:23,107 INFO L93 Difference]: Finished difference Result 40 states and 57 transitions. [2020-10-27 04:05:23,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 04:05:23,107 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-10-27 04:05:23,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:05:23,110 INFO L225 Difference]: With dead ends: 40 [2020-10-27 04:05:23,110 INFO L226 Difference]: Without dead ends: 35 [2020-10-27 04:05:23,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:05:23,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-27 04:05:23,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 28. [2020-10-27 04:05:23,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-27 04:05:23,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-10-27 04:05:23,122 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 30 [2020-10-27 04:05:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:05:23,123 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-10-27 04:05:23,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 04:05:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-10-27 04:05:23,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-27 04:05:23,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:05:23,126 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:05:23,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 04:05:23,126 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:05:23,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:05:23,127 INFO L82 PathProgramCache]: Analyzing trace with hash 451043308, now seen corresponding path program 2 times [2020-10-27 04:05:23,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:05:23,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [553548214] [2020-10-27 04:05:23,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:05:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:23,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:23,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:23,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:23,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:23,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:23,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:23,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:24,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:24,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:24,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:26,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:26,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:26,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:28,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:28,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-27 04:05:28,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-27 04:05:28,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-27 04:05:28,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:28,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:05:28,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:05:28,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 04:05:28,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:28,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:05:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:28,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:28,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:28,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:05:28,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:28,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:05:28,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:28,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:28,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:28,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:05:28,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:05:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:28,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:28,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:28,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:28,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:28,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:28,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:29,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:32,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:32,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:32,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:32,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:32,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:33,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:33,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:33,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:33,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:33,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:33,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 04:05:33,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-27 04:05:33,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 04:05:33,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:33,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:05:33,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:05:33,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:05:33,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:33,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:33,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:33,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:33,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:33,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:05:33,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:05:33,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 04:05:33,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:33,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:05:33,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:05:33,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:05:33,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:33,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:33,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:33,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:33,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:33,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:33,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:05:33,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:33,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:05:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:05:33,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:33,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 04:05:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:33,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:33,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:33,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:33,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:33,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:05:33,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:33,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:33,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:33,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:05:33,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:05:33,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 04:05:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:33,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:33,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:33,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:33,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:33,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:34,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:34,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-27 04:05:34,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:05:34,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-10-27 04:05:34,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:05:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:05:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 04:05:34,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:34,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:34,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:34,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:34,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:34,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:34,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:34,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 04:05:34,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 04:05:34,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-27 04:05:34,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:34,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:05:34,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:34,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 04:05:34,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:34,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:34,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:34,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:34,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:34,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:34,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:05:34,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:34,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:34,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:34,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:05:34,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:34,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 04:05:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:34,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:34,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:34,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:34,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:34,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:05:34,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:34,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:34,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:34,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:05:34,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:34,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-27 04:05:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:34,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:34,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:34,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:34,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:34,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:05:34,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:34,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:05:34,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:05:34,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:05:34,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:34,264 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 66 proven. 44 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-27 04:05:34,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [553548214] [2020-10-27 04:05:34,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:05:34,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 04:05:34,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752981415] [2020-10-27 04:05:34,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 04:05:34,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:05:34,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 04:05:34,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:05:34,270 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand 13 states. [2020-10-27 04:05:34,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:05:34,901 INFO L93 Difference]: Finished difference Result 57 states and 85 transitions. [2020-10-27 04:05:34,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 04:05:34,901 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 67 [2020-10-27 04:05:34,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:05:34,903 INFO L225 Difference]: With dead ends: 57 [2020-10-27 04:05:34,903 INFO L226 Difference]: Without dead ends: 36 [2020-10-27 04:05:34,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2020-10-27 04:05:34,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-27 04:05:34,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2020-10-27 04:05:34,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-27 04:05:34,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2020-10-27 04:05:34,914 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 67 [2020-10-27 04:05:34,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:05:34,915 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2020-10-27 04:05:34,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 04:05:34,915 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2020-10-27 04:05:34,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-27 04:05:34,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:05:34,917 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:05:34,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 04:05:34,918 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:05:34,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:05:34,918 INFO L82 PathProgramCache]: Analyzing trace with hash -922133351, now seen corresponding path program 1 times [2020-10-27 04:05:34,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:05:34,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [959110185] [2020-10-27 04:05:34,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:05:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:34,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:34,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:34,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:34,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:35,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:35,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:35,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:35,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:35,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:35,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:39,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:39,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-27 04:05:39,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 04:05:39,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 04:05:39,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:39,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:05:39,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:05:39,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 04:05:39,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:39,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:05:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:39,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:39,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:39,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:05:39,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:39,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:05:39,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:39,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:39,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:39,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:39,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:39,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:05:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:40,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:40,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:40,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:40,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:40,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:40,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:40,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:41,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:41,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:42,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:42,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:43,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:43,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:44,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:44,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-27 04:05:44,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-27 04:05:44,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 04:05:44,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:44,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:05:45,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:05:45,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 04:05:45,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:05:45,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:45,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:45,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:45,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:45,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:05:45,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:05:45,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-27 04:05:45,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:05:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 04:05:45,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:45,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:45,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:45,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:45,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:05:45,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:45,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:05:45,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:45,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:05:45,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:45,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:05:45,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:45,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:05:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:45,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:45,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:45,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:45,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:45,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:05:45,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:45,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:45,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:45,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:05:45,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:45,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 04:05:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:45,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:45,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:45,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:05:45,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:45,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:05:45,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:45,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:45,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:45,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 04:05:45,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:45,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:45,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:45,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:45,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:05:45,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:45,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:05:45,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:45,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:45,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:45,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:45,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:45,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:05:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:45,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:45,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:45,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:45,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:45,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:05:45,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:45,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:45,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:45,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:45,234 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 16 proven. 48 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-27 04:05:45,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [959110185] [2020-10-27 04:05:45,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:05:45,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 04:05:45,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917343617] [2020-10-27 04:05:45,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 04:05:45,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:05:45,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 04:05:45,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 04:05:45,238 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand 9 states. [2020-10-27 04:05:45,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:05:45,673 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-10-27 04:05:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 04:05:45,674 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2020-10-27 04:05:45,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:05:45,676 INFO L225 Difference]: With dead ends: 73 [2020-10-27 04:05:45,676 INFO L226 Difference]: Without dead ends: 50 [2020-10-27 04:05:45,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-27 04:05:45,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-27 04:05:45,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2020-10-27 04:05:45,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-27 04:05:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 65 transitions. [2020-10-27 04:05:45,691 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 65 transitions. Word has length 56 [2020-10-27 04:05:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:05:45,692 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 65 transitions. [2020-10-27 04:05:45,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 04:05:45,692 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 65 transitions. [2020-10-27 04:05:45,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-27 04:05:45,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:05:45,701 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:05:45,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 04:05:45,702 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:05:45,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:05:45,702 INFO L82 PathProgramCache]: Analyzing trace with hash -886095822, now seen corresponding path program 2 times [2020-10-27 04:05:45,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:05:45,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068476373] [2020-10-27 04:05:45,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:05:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:45,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:45,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:45,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:45,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:47,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:50,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:50,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-27 04:05:50,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:05:50,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 04:05:50,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:50,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:05:50,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:05:50,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 04:05:50,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:50,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:05:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:50,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:50,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:50,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:05:50,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:50,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:05:50,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:50,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:50,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:05:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:50,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:50,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:50,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:50,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:51,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:55,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:55,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 04:05:55,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:05:55,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 04:05:55,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:55,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:05:55,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:05:55,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 04:05:55,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:55,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:55,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:55,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:55,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:56,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:56,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 04:05:56,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:05:56,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 750 [2020-10-27 04:05:56,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:56,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 04:05:56,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:56,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 04:05:56,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:56,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:56,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:56,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:56,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:56,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:05:56,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:05:56,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 04:05:56,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:05:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 04:05:56,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:56,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:56,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:56,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:56,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:05:56,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:56,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:05:56,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:05:56,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:56,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:05:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:56,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:56,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:56,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:56,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:56,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:05:56,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:56,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:05:56,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:56,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:05:56,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:56,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 04:05:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:56,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:56,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:56,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:05:56,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:56,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:05:56,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:56,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:56,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:56,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:05:56,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:56,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 04:05:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:56,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:56,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:56,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:05:56,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:56,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:05:56,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:56,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:05:56,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:56,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 04:05:56,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:56,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:05:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:56,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:56,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:56,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:05:56,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:56,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:05:56,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:56,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:56,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:56,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:56,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:05:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:56,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:56,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:05:56,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:05:56,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:05:56,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:05:56,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:05:56,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:05:56,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:05:56,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:05:56,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:05:56,821 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 23 proven. 90 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-27 04:05:56,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068476373] [2020-10-27 04:05:56,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:05:56,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 04:05:56,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410401135] [2020-10-27 04:05:56,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:05:56,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:05:56,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:05:56,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:05:56,827 INFO L87 Difference]: Start difference. First operand 47 states and 65 transitions. Second operand 10 states. [2020-10-27 04:05:57,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:05:57,454 INFO L93 Difference]: Finished difference Result 104 states and 176 transitions. [2020-10-27 04:05:57,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 04:05:57,455 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-10-27 04:05:57,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:05:57,458 INFO L225 Difference]: With dead ends: 104 [2020-10-27 04:05:57,458 INFO L226 Difference]: Without dead ends: 63 [2020-10-27 04:05:57,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-10-27 04:05:57,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-27 04:05:57,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 51. [2020-10-27 04:05:57,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-27 04:05:57,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 68 transitions. [2020-10-27 04:05:57,478 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 68 transitions. Word has length 70 [2020-10-27 04:05:57,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:05:57,479 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 68 transitions. [2020-10-27 04:05:57,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:05:57,479 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 68 transitions. [2020-10-27 04:05:57,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 04:05:57,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:05:57,481 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:05:57,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 04:05:57,481 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:05:57,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:05:57,482 INFO L82 PathProgramCache]: Analyzing trace with hash -515421828, now seen corresponding path program 3 times [2020-10-27 04:05:57,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:05:57,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040345172] [2020-10-27 04:05:57,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:05:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:05:57,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:57,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:57,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:57,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:57,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:57,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:57,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:57,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:57,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:57,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:58,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:05:58,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:01,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:01,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:02,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:02,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-27 04:06:02,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-27 04:06:02,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 04:06:02,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:06:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:06:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-27 04:06:02,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:02,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:06:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:02,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:02,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:02,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:06:02,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:02,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:06:02,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:02,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:02,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:02,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:02,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:02,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:06:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:02,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:02,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:02,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:02,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:02,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:03,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:03,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:03,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:03,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:04,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:04,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:04,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:04,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:04,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:04,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:04,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:04,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:04,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:05,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:05,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:05,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:05,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:05,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:06,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:06,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:06,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:06,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:07,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:07,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:07,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 04:06:07,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 28 [2020-10-27 04:06:07,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 04:06:07,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:07,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:06:07,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:06:07,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 04:06:07,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:07,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:07,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:07,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:07,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:07,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:07,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:07,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:07,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:08,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:08,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:08,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:08,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:08,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:08,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:08,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:12,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:12,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 04:06:12,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-27 04:06:12,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 04:06:12,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:12,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:06:12,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:12,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 04:06:12,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:12,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:12,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:12,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:12,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:12,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:12,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:12,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:14,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:14,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 04:06:14,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:06:14,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1496 [2020-10-27 04:06:14,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:14,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 04:06:14,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:14,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 04:06:14,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:14,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:14,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:14,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:14,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:14,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:14,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:06:14,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:06:14,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 04:06:14,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:06:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 04:06:14,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:14,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:14,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:14,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:14,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:14,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:14,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:06:14,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:14,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:06:14,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:14,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:06:14,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:14,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:14,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:14,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:14,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:14,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:14,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:06:14,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:14,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:14,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:14,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:14,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:14,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 04:06:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:14,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:14,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:14,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:14,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:14,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:06:14,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:14,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:14,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:14,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:06:14,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:14,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 04:06:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:14,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:14,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:14,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:14,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:14,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:06:14,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:14,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:14,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:14,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:06:14,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:14,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 04:06:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:14,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:14,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:14,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:14,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:14,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:14,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:14,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:14,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:14,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 04:06:14,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:06:14,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-10-27 04:06:14,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 04:06:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:06:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 04:06:14,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:15,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:15,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:15,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:15,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:15,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:15,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:06:15,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:06:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:06:15,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:15,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:15,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:15,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:15,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:06:15,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:15,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:06:15,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:15,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:15,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:15,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 04:06:15,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:15,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:15,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:15,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:15,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:15,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:15,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:15,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:15,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:15,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:15,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:15,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:15,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:15,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:15,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:15,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:15,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:15,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:15,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:15,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:15,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:15,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:15,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 80 proven. 200 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-10-27 04:06:15,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040345172] [2020-10-27 04:06:15,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:06:15,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-27 04:06:15,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896077688] [2020-10-27 04:06:15,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-27 04:06:15,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:06:15,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-27 04:06:15,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-10-27 04:06:15,113 INFO L87 Difference]: Start difference. First operand 51 states and 68 transitions. Second operand 17 states. [2020-10-27 04:06:16,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:06:16,616 INFO L93 Difference]: Finished difference Result 118 states and 190 transitions. [2020-10-27 04:06:16,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:06:16,617 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 98 [2020-10-27 04:06:16,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:06:16,620 INFO L225 Difference]: With dead ends: 118 [2020-10-27 04:06:16,621 INFO L226 Difference]: Without dead ends: 77 [2020-10-27 04:06:16,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=175, Invalid=755, Unknown=0, NotChecked=0, Total=930 [2020-10-27 04:06:16,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-27 04:06:16,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 71. [2020-10-27 04:06:16,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-27 04:06:16,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 89 transitions. [2020-10-27 04:06:16,640 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 89 transitions. Word has length 98 [2020-10-27 04:06:16,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:06:16,640 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 89 transitions. [2020-10-27 04:06:16,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-27 04:06:16,640 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2020-10-27 04:06:16,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 04:06:16,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:06:16,642 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 12, 7, 7, 7, 7, 7, 7, 7, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:06:16,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 04:06:16,643 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:06:16,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:06:16,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1296121057, now seen corresponding path program 4 times [2020-10-27 04:06:16,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:06:16,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586268850] [2020-10-27 04:06:16,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:06:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:16,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:17,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:17,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-27 04:06:17,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:17,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-10-27 04:06:17,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:17,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-27 04:06:17,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 04:06:17,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-27 04:06:17,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:17,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:06:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:17,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:17,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:17,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:06:17,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:17,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:06:17,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:17,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:17,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:17,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:17,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:17,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:06:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:17,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:17,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:17,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 04:06:17,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:17,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 560 [2020-10-27 04:06:17,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:17,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 04:06:17,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:17,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-27 04:06:17,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:17,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:17,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 04:06:18,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:18,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-27 04:06:18,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 04:06:18,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:18,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-27 04:06:18,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:18,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 04:06:18,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:18,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 04:06:18,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:06:18,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:18,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-27 04:06:18,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:18,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:06:18,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:18,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 04:06:18,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:06:18,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:18,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:06:18,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:18,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:18,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:18,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:06:18,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:06:18,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:18,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:18,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:18,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:18,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:18,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:06:18,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:06:18,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:18,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:18,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 04:06:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:18,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:18,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:18,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:06:18,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:06:18,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:18,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:06:18,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 04:06:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:18,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:06:18,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:18,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 04:06:18,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:06:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 04:06:18,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:18,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:18,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:18,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:06:18,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:06:18,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:18,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:18,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:18,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:18,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:18,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:06:18,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:06:18,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:18,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:18,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:06:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:18,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 04:06:18,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:18,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 04:06:18,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 04:06:18,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:18,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 04:06:18,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:18,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:06:18,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:18,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 04:06:18,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:06:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 04:06:18,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:18,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:18,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:18,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:06:18,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:06:18,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:18,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:18,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:18,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:18,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:18,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:06:18,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:06:18,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:18,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:18,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 04:06:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:18,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:18,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:18,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:18,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:18,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:06:18,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:18,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:06:18,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:18,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:06:18,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:18,975 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2020-10-27 04:06:18,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586268850] [2020-10-27 04:06:18,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:06:18,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 04:06:18,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572836163] [2020-10-27 04:06:18,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 04:06:18,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:06:18,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 04:06:18,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-10-27 04:06:18,986 INFO L87 Difference]: Start difference. First operand 71 states and 89 transitions. Second operand 18 states. [2020-10-27 04:06:20,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:06:20,194 INFO L93 Difference]: Finished difference Result 84 states and 105 transitions. [2020-10-27 04:06:20,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:06:20,196 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 111 [2020-10-27 04:06:20,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:06:20,199 INFO L225 Difference]: With dead ends: 84 [2020-10-27 04:06:20,199 INFO L226 Difference]: Without dead ends: 79 [2020-10-27 04:06:20,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 42 SyntacticMatches, 7 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2020-10-27 04:06:20,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-27 04:06:20,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-10-27 04:06:20,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-27 04:06:20,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 100 transitions. [2020-10-27 04:06:20,217 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 100 transitions. Word has length 111 [2020-10-27 04:06:20,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:06:20,218 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 100 transitions. [2020-10-27 04:06:20,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 04:06:20,218 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 100 transitions. [2020-10-27 04:06:20,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-27 04:06:20,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:06:20,220 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 17, 10, 10, 10, 10, 10, 10, 10, 7, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:06:20,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 04:06:20,220 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:06:20,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:06:20,221 INFO L82 PathProgramCache]: Analyzing trace with hash -2099364178, now seen corresponding path program 5 times [2020-10-27 04:06:20,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:06:20,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [523742311] [2020-10-27 04:06:20,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:06:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:20,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:20,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:20,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:20,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:20,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:20,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:22,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:22,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:22,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:22,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:22,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:24,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:24,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:24,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:25,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-27 04:06:25,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-27 04:06:25,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 04:06:25,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:25,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:06:25,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 04:06:25,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-27 04:06:25,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:25,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:06:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:25,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:25,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:06:25,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:25,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:06:25,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:25,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:25,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:25,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:25,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:25,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:06:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:25,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:25,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:26,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:26,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:30,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:30,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-27 04:06:30,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-27 04:06:30,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 04:06:30,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 04:06:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 04:06:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-27 04:06:30,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:30,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:30,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:30,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:30,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:30,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:30,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:30,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:30,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:30,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:30,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:31,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:31,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:35,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 04:06:35,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-27 04:06:35,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 04:06:35,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:35,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 04:06:35,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:35,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-27 04:06:35,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:35,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:35,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:35,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:36,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:36,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:36,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:40,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 04:06:40,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-27 04:06:40,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 04:06:40,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:40,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 04:06:40,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:40,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 04:06:40,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:40,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:40,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:40,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 04:06:40,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:40,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 04:06:40,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:40,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:40,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:40,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 04:06:40,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:40,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:40,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:40,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:06:40,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:40,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:06:40,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:40,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:40,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:40,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:40,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:40,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:40,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:40,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:40,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:40,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:40,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:40,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:40,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:40,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:40,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:40,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:40,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:40,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:40,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:40,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:40,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:40,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:40,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:40,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:40,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:40,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 04:06:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:40,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:40,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:40,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:40,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:40,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:40,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:40,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:40,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:40,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:40,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 04:06:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:40,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:40,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:06:40,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 04:06:40,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-27 04:06:40,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:40,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:06:40,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:40,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 04:06:40,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:40,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:40,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:40,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:40,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:06:40,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:06:40,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:40,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:06:40,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:40,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:06:40,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:40,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:40,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:40,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:40,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:40,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:06:40,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:40,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:40,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:40,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:40,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:40,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 04:06:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:40,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:40,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 04:06:40,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:40,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:06:40,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:40,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:40,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:40,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 04:06:40,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:40,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:40,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:40,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:06:40,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:40,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:06:40,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:40,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:40,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:40,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:40,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:40,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:40,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:40,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:40,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:40,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:40,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:40,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:40,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:40,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:40,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:40,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:40,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:40,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:40,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:40,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:40,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:40,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:40,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:40,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 04:06:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:40,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:40,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:40,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:40,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:06:40,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:40,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:06:40,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:40,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:06:40,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:40,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-27 04:06:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:40,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:40,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:41,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:41,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 04:06:41,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:06:41,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1081 [2020-10-27 04:06:41,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:41,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 04:06:41,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:06:41,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 04:06:41,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:41,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:41,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:41,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:41,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:41,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 04:06:41,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:06:41,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 04:06:41,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:41,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:06:41,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:41,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 04:06:41,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:41,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 04:06:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:41,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:41,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:41,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:41,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:41,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:06:41,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:41,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:06:41,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:41,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:06:41,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:41,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-27 04:06:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:41,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:41,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:41,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:06:41,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:06:41,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:06:41,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:41,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:06:41,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:41,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:06:41,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:41,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 04:06:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:06:41,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:41,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:06:41,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:06:41,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:06:41,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 04:06:41,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:06:41,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:06:41,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 04:06:41,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:06:41,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 04:06:41,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:06:41,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 422 proven. 232 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2020-10-27 04:06:41,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [523742311] [2020-10-27 04:06:41,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 04:06:41,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 04:06:41,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134886768] [2020-10-27 04:06:41,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 04:06:41,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:06:41,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 04:06:41,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2020-10-27 04:06:41,994 INFO L87 Difference]: Start difference. First operand 79 states and 100 transitions. Second operand 16 states. [2020-10-27 04:06:43,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:06:43,467 INFO L93 Difference]: Finished difference Result 145 states and 211 transitions. [2020-10-27 04:06:43,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 04:06:43,468 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 152 [2020-10-27 04:06:43,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:06:43,469 INFO L225 Difference]: With dead ends: 145 [2020-10-27 04:06:43,469 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 04:06:43,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=251, Invalid=871, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 04:06:43,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 04:06:43,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 04:06:43,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 04:06:43,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 04:06:43,472 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2020-10-27 04:06:43,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:06:43,472 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 04:06:43,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 04:06:43,472 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 04:06:43,472 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 04:06:43,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 04:06:43,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 04:06:44,134 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 7 [2020-10-27 04:06:44,811 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 32 [2020-10-27 04:06:44,815 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 04:06:44,816 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 04:06:44,816 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 04:06:44,816 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 04:06:44,816 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 04:06:44,816 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-27 04:06:44,816 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 04:06:44,817 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 04:06:44,817 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 04:06:44,817 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 04:06:44,817 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 04:06:44,817 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 25 32) the Hoare annotation is: true [2020-10-27 04:06:44,817 INFO L270 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: false [2020-10-27 04:06:44,817 INFO L274 CegarLoopResult]: For program point L28(lines 28 30) no Hoare annotation was computed. [2020-10-27 04:06:44,817 INFO L274 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-10-27 04:06:44,818 INFO L270 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (= 5 main_~x~0) [2020-10-27 04:06:44,818 INFO L274 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-10-27 04:06:44,818 INFO L274 CegarLoopResult]: For program point L28-2(lines 28 30) no Hoare annotation was computed. [2020-10-27 04:06:44,818 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 25 32) no Hoare annotation was computed. [2020-10-27 04:06:44,818 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 25 32) no Hoare annotation was computed. [2020-10-27 04:06:44,818 INFO L274 CegarLoopResult]: For program point fiboEXIT(lines 7 15) no Hoare annotation was computed. [2020-10-27 04:06:44,818 INFO L274 CegarLoopResult]: For program point fiboFINAL(lines 7 15) no Hoare annotation was computed. [2020-10-27 04:06:44,818 INFO L270 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (not (<= |fibo_#in~n| 1)) (= fibo_~n |fibo_#in~n|)) [2020-10-27 04:06:44,819 INFO L274 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-10-27 04:06:44,819 INFO L270 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (and (or (and (<= |fibo_#t~ret7| 1) (<= 1 |fibo_#t~ret7|)) (not (<= |fibo_#in~n| 3))) (not (<= |fibo_#in~n| 1)) (let ((.cse0 (= fibo_~n |fibo_#in~n|))) (or (and (not (= 5 |fibo_#in~n|)) .cse0) (and (<= |fibo_#t~ret7| 3) .cse0 (<= 3 |fibo_#t~ret7|)))) (or (not (<= 4 |fibo_#in~n|)) (<= 5 |fibo_#in~n|) (and (<= |fibo_#t~ret7| 2) (<= 2 |fibo_#t~ret7|)))) [2020-10-27 04:06:44,819 INFO L274 CegarLoopResult]: For program point L10(lines 10 14) no Hoare annotation was computed. [2020-10-27 04:06:44,819 INFO L274 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-10-27 04:06:44,819 INFO L274 CegarLoopResult]: For program point L8(lines 8 14) no Hoare annotation was computed. [2020-10-27 04:06:44,819 INFO L277 CegarLoopResult]: At program point fiboENTRY(lines 7 15) the Hoare annotation is: true [2020-10-27 04:06:44,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 04:06:44 BoogieIcfgContainer [2020-10-27 04:06:44,825 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 04:06:44,827 INFO L168 Benchmark]: Toolchain (without parser) took 87167.96 ms. Allocated memory was 151.0 MB in the beginning and 653.3 MB in the end (delta: 502.3 MB). Free memory was 126.8 MB in the beginning and 347.9 MB in the end (delta: -221.1 MB). Peak memory consumption was 282.1 MB. Max. memory is 8.0 GB. [2020-10-27 04:06:44,827 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory is still 100.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 04:06:44,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.61 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 117.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 04:06:44,828 INFO L168 Benchmark]: Boogie Preprocessor took 32.41 ms. Allocated memory is still 151.0 MB. Free memory was 117.0 MB in the beginning and 115.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-27 04:06:44,829 INFO L168 Benchmark]: RCFGBuilder took 338.61 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 103.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-27 04:06:44,830 INFO L168 Benchmark]: TraceAbstraction took 86502.02 ms. Allocated memory was 151.0 MB in the beginning and 653.3 MB in the end (delta: 502.3 MB). Free memory was 102.7 MB in the beginning and 347.9 MB in the end (delta: -245.3 MB). Peak memory consumption was 257.9 MB. Max. memory is 8.0 GB. [2020-10-27 04:06:44,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory is still 100.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 279.61 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 117.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.41 ms. Allocated memory is still 151.0 MB. Free memory was 117.0 MB in the beginning and 115.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 338.61 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 103.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 86502.02 ms. Allocated memory was 151.0 MB in the beginning and 653.3 MB in the end (delta: 502.3 MB). Free memory was 102.7 MB in the beginning and 347.9 MB in the end (delta: -245.3 MB). Peak memory consumption was 257.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 85.0s, OverallIterations: 10, TraceHistogramMax: 21, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 211 SDtfs, 463 SDslu, 417 SDs, 0 SdLazy, 1869 SolverSat, 458 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 382 GetRequests, 201 SyntacticMatches, 9 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 35 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 154 PreInvPairs, 210 NumberOfFragments, 99 HoareAnnotationTreeSize, 154 FomulaSimplifications, 3515 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 10 FomulaSimplificationsInter, 2783 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 77.0s InterpolantComputationTime, 643 NumberOfCodeBlocks, 643 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 633 ConstructedInterpolants, 0 QuantifiedInterpolants, 173453 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 1837/2649 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...