/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:10:14,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:10:14,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:10:14,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:10:14,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:10:14,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:10:14,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:10:14,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:10:14,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:10:14,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:10:14,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:10:14,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:10:14,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:10:14,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:10:14,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:10:14,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:10:14,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:10:14,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:10:14,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:10:14,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:10:14,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:10:14,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:10:14,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:10:14,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:10:14,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:10:14,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:10:14,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:10:14,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:10:14,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:10:14,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:10:14,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:10:14,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:10:14,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:10:15,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:10:15,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:10:15,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:10:15,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:10:15,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:10:15,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:10:15,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:10:15,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:10:15,007 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 [2020-09-25 03:10:15,057 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:10:15,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:10:15,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:10:15,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:10:15,060 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:10:15,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:10:15,061 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:10:15,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:10:15,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:10:15,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:10:15,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:10:15,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:10:15,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:10:15,064 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:10:15,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:10:15,065 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:10:15,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:10:15,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:10:15,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:10:15,066 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:10:15,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:10:15,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:10:15,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:10:15,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:10:15,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:10:15,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:10:15,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:10:15,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:10:15,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:10:15,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> SingleStatement 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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=true; [2020-09-25 03:10:15,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:10:15,607 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:10:15,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:10:15,613 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:10:15,614 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:10:15,615 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_4-1.c [2020-09-25 03:10:15,700 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9fe381113/09abe3cd87444943b61a8262cdcd99b9/FLAGfeb9a9a50 [2020-09-25 03:10:16,242 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:10:16,243 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_4-1.c [2020-09-25 03:10:16,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9fe381113/09abe3cd87444943b61a8262cdcd99b9/FLAGfeb9a9a50 [2020-09-25 03:10:16,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9fe381113/09abe3cd87444943b61a8262cdcd99b9 [2020-09-25 03:10:16,590 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:10:16,597 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:10:16,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:10:16,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:10:16,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:10:16,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:10:16" (1/1) ... [2020-09-25 03:10:16,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e64c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:16, skipping insertion in model container [2020-09-25 03:10:16,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:10:16" (1/1) ... [2020-09-25 03:10:16,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:10:16,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:10:16,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:10:16,896 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:10:16,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:10:16,938 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:10:16,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:16 WrapperNode [2020-09-25 03:10:16,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:10:16,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:10:16,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:10:16,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:10:16,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:16" (1/1) ... [2020-09-25 03:10:16,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:16" (1/1) ... [2020-09-25 03:10:16,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:16" (1/1) ... [2020-09-25 03:10:16,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:16" (1/1) ... [2020-09-25 03:10:17,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:16" (1/1) ... [2020-09-25 03:10:17,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:16" (1/1) ... [2020-09-25 03:10:17,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:16" (1/1) ... [2020-09-25 03:10:17,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:10:17,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:10:17,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:10:17,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:10:17,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:16" (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 [2020-09-25 03:10:17,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:10:17,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:10:17,171 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 03:10:17,171 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 03:10:17,171 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:10:17,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:10:17,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:10:17,172 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 03:10:17,172 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 03:10:17,172 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:10:17,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:10:17,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:10:17,414 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:10:17,414 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:10:17,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:10:17 BoogieIcfgContainer [2020-09-25 03:10:17,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:10:17,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:10:17,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:10:17,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:10:17,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:10:16" (1/3) ... [2020-09-25 03:10:17,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566da70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:10:17, skipping insertion in model container [2020-09-25 03:10:17,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:10:16" (2/3) ... [2020-09-25 03:10:17,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566da70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:10:17, skipping insertion in model container [2020-09-25 03:10:17,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:10:17" (3/3) ... [2020-09-25 03:10:17,437 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_4-1.c [2020-09-25 03:10:17,450 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:10:17,462 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:10:17,486 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:10:17,527 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:10:17,527 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:10:17,528 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:10:17,528 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:10:17,528 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:10:17,528 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:10:17,528 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:10:17,528 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:10:17,550 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 03:10:17,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 03:10:17,557 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:17,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:17,559 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:17,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:17,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 03:10:17,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:17,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160288658] [2020-09-25 03:10:17,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:17,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:17,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:17,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:10:17,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:17,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 03:10:17,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:17,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:10:17,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:10:17,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:10:17,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:10:17,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:10:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:17,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:17,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:17,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:10:17,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:17,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:10:17,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:17,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:17,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:17,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:17,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:17,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:10:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:17,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:17,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:17,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:17,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:17,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 03:10:17,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:10:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:10:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:17,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:17,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:10:17,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160288658] [2020-09-25 03:10:17,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:10:17,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:10:17,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46039912] [2020-09-25 03:10:17,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:10:17,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:10:18,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:10:18,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:10:18,015 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 03:10:18,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:10:18,168 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 03:10:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:10:18,171 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 03:10:18,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:10:18,184 INFO L225 Difference]: With dead ends: 58 [2020-09-25 03:10:18,185 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 03:10:18,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:10:18,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 03:10:18,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 03:10:18,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 03:10:18,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 03:10:18,253 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 03:10:18,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:10:18,254 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 03:10:18,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:10:18,254 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 03:10:18,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 03:10:18,257 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:18,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:18,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:10:18,258 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:18,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:18,259 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 03:10:18,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:18,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123591253] [2020-09-25 03:10:18,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:18,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:18,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:18,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 03:10:18,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:18,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 03:10:18,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:18,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:10:18,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:10:18,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:18,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:18,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:10:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:18,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:18,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:18,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:10:18,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:18,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:10:18,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:18,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:18,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:18,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:18,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:18,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:10:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:18,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:18,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:18,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:18,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:18,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 03:10:18,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:18,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:10:18,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:10:18,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:18,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:18,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:10:18,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123591253] [2020-09-25 03:10:18,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:10:18,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:10:18,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506352600] [2020-09-25 03:10:18,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:10:18,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:10:18,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:10:18,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:10:18,506 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 03:10:18,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:10:18,583 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 03:10:18,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:10:18,584 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 03:10:18,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:10:18,586 INFO L225 Difference]: With dead ends: 50 [2020-09-25 03:10:18,586 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 03:10:18,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:10:18,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 03:10:18,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 03:10:18,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 03:10:18,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 03:10:18,597 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 03:10:18,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:10:18,598 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 03:10:18,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:10:18,598 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 03:10:18,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 03:10:18,600 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:18,600 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:18,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:10:18,601 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:18,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:18,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 03:10:18,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:18,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878381644] [2020-09-25 03:10:18,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:18,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:18,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:18,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:19,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:19,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 03:10:19,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:10:19,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 591 [2020-09-25 03:10:19,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:19,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:10:19,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:10:19,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:10:19,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:10:19,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:10:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:19,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:19,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:19,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:10:19,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:19,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:10:19,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:19,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:19,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:19,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:19,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 03:10:19,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:10:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:19,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:19,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:19,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:19,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:19,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:10:19,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:10:19,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-09-25 03:10:19,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:10:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:10:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:10:19,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:19,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:19,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:19,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:19,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:19,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:19,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:10:19,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:19,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:19,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:19,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:19,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:19,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:10:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:19,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:19,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:19,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:19,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:19,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:10:19,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:19,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:10:19,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:19,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:19,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:19,693 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 03:10:19,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878381644] [2020-09-25 03:10:19,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:10:19,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 03:10:19,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961251970] [2020-09-25 03:10:19,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:10:19,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:10:19,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:10:19,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:10:19,696 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 03:10:19,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:10:19,859 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2020-09-25 03:10:19,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 03:10:19,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 03:10:19,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:10:19,863 INFO L225 Difference]: With dead ends: 69 [2020-09-25 03:10:19,863 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 03:10:19,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:10:19,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 03:10:19,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2020-09-25 03:10:19,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 03:10:19,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2020-09-25 03:10:19,883 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 33 [2020-09-25 03:10:19,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:10:19,887 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2020-09-25 03:10:19,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:10:19,889 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2020-09-25 03:10:19,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 03:10:19,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:19,894 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:19,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:10:19,895 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:19,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:19,895 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 03:10:19,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:19,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575648288] [2020-09-25 03:10:19,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:19,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:19,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:19,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:20,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:20,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:20,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 03:10:20,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:10:20,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 618 [2020-09-25 03:10:20,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:10:20,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:10:20,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 03:10:20,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:20,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:10:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:20,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:20,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:20,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:10:20,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:20,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:10:20,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:20,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:20,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:10:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:20,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:20,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:20,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:20,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:21,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:21,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:10:21,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:10:21,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-09-25 03:10:21,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:21,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:10:21,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:10:21,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:10:21,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:21,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:21,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:21,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:21,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:21,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:21,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:10:21,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:21,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:10:21,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:21,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:10:21,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:21,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:10:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:21,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:21,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:21,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:21,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:21,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:10:21,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:21,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:21,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:21,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:21,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:21,231 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 03:10:21,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575648288] [2020-09-25 03:10:21,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:10:21,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:10:21,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545614300] [2020-09-25 03:10:21,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:10:21,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:10:21,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:10:21,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:10:21,234 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand 7 states. [2020-09-25 03:10:21,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:10:21,362 INFO L93 Difference]: Finished difference Result 85 states and 110 transitions. [2020-09-25 03:10:21,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:10:21,363 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 03:10:21,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:10:21,366 INFO L225 Difference]: With dead ends: 85 [2020-09-25 03:10:21,367 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 03:10:21,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:10:21,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 03:10:21,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2020-09-25 03:10:21,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-09-25 03:10:21,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2020-09-25 03:10:21,383 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 35 [2020-09-25 03:10:21,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:10:21,384 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2020-09-25 03:10:21,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:10:21,384 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2020-09-25 03:10:21,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 03:10:21,387 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:21,387 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:21,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:10:21,388 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:21,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:21,388 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 03:10:21,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:21,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349045945] [2020-09-25 03:10:21,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:21,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:21,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:21,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:21,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:21,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:21,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:21,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:26,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:26,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 03:10:26,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:10:26,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 03:10:26,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:26,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:10:26,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:10:26,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 03:10:26,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:26,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:10:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:26,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:26,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:26,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:10:26,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:26,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:10:26,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:26,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:26,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:26,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:10:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:26,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:26,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:26,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:26,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:27,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:27,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:27,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:30,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:30,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 03:10:30,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:10:30,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4325 [2020-09-25 03:10:30,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:30,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:10:30,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:10:30,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:10:30,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:30,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:30,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:30,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:30,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:30,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:10:30,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:10:30,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 03:10:30,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:30,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:10:30,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:30,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:10:30,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:30,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:30,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:30,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:30,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:30,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:30,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:10:30,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:30,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:10:30,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:30,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:30,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:30,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:10:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:30,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:30,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:30,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:30,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:30,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:10:30,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:30,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:30,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:30,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:30,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:30,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 03:10:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:30,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:30,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:30,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:30,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:30,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:10:30,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:30,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:30,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:30,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:30,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:30,982 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 03:10:30,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349045945] [2020-09-25 03:10:30,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:10:30,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 03:10:30,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922026509] [2020-09-25 03:10:30,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:10:30,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:10:30,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:10:30,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:10:30,987 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand 8 states. [2020-09-25 03:10:31,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:10:31,173 INFO L93 Difference]: Finished difference Result 105 states and 149 transitions. [2020-09-25 03:10:31,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 03:10:31,175 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-09-25 03:10:31,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:10:31,183 INFO L225 Difference]: With dead ends: 105 [2020-09-25 03:10:31,184 INFO L226 Difference]: Without dead ends: 99 [2020-09-25 03:10:31,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:10:31,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-25 03:10:31,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 81. [2020-09-25 03:10:31,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 03:10:31,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions. [2020-09-25 03:10:31,223 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 51 [2020-09-25 03:10:31,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:10:31,224 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions. [2020-09-25 03:10:31,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:10:31,224 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions. [2020-09-25 03:10:31,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 03:10:31,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:31,235 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:31,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:10:31,238 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:31,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:31,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1703786405, now seen corresponding path program 1 times [2020-09-25 03:10:31,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:31,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611268660] [2020-09-25 03:10:31,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:31,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:31,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:31,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:32,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:32,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 03:10:32,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:10:32,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1671 [2020-09-25 03:10:32,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:32,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:10:32,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:10:32,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 03:10:32,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:32,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:10:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:32,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:32,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:32,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:10:32,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:32,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:10:32,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:32,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:32,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:32,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:32,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:32,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:10:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:32,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:32,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:33,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:34,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:34,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:10:34,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:10:34,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1652 [2020-09-25 03:10:34,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:34,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:10:34,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:10:34,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:10:34,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:34,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:34,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:34,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:34,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:10:34,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:34,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 03:10:34,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:34,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:34,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:34,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:10:34,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:34,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:34,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:34,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:34,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:34,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:34,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:10:34,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:34,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:34,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:34,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:34,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:34,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:10:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:34,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:34,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:34,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:34,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:34,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:10:34,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:34,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:34,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:34,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:34,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:34,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 03:10:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:34,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:34,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:34,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:34,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:34,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:10:34,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:34,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:10:34,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:34,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:10:34,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 03:10:34,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611268660] [2020-09-25 03:10:34,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:10:34,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:10:34,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754200973] [2020-09-25 03:10:34,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:10:34,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:10:34,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:10:34,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:10:34,777 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand 7 states. [2020-09-25 03:10:34,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:10:34,904 INFO L93 Difference]: Finished difference Result 107 states and 151 transitions. [2020-09-25 03:10:34,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:10:34,904 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-09-25 03:10:34,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:10:34,906 INFO L225 Difference]: With dead ends: 107 [2020-09-25 03:10:34,907 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 03:10:34,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:10:34,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 03:10:34,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 77. [2020-09-25 03:10:34,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-09-25 03:10:34,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 104 transitions. [2020-09-25 03:10:34,922 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 104 transitions. Word has length 52 [2020-09-25 03:10:34,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:10:34,922 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 104 transitions. [2020-09-25 03:10:34,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:10:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 104 transitions. [2020-09-25 03:10:34,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 03:10:34,925 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:34,926 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:34,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:10:34,926 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:34,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:34,927 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-25 03:10:34,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:34,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214657696] [2020-09-25 03:10:34,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:34,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:34,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:34,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:35,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:35,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:35,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:35,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:36,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:37,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:37,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:39,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:39,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:39,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 03:10:39,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 03:10:39,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 03:10:39,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:39,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:10:39,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 03:10:39,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:10:39,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:39,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:10:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:39,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:39,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:39,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:10:39,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:39,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:10:39,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:39,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:39,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:39,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:10:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:39,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:40,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:40,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:40,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:40,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:40,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:40,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:41,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:41,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:44,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:44,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 03:10:44,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 03:10:44,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 03:10:44,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:44,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:10:44,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:10:44,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 03:10:44,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:44,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:44,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:44,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:45,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:10:45,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:10:45,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 03:10:45,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:10:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:10:45,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:45,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:45,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:45,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:45,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:45,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:10:45,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:45,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:45,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:45,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:45,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:45,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:10:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:45,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:45,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:45,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:45,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:10:45,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:45,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:10:45,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:45,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:45,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:45,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 03:10:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:45,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:45,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:10:45,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:10:45,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-25 03:10:45,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:10:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:10:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:10:45,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:45,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:45,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:45,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:45,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:45,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:10:45,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:45,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:45,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:45,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:45,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:10:45,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:10:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:45,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:45,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:45,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:45,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:45,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:10:45,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:45,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:10:45,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:45,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:45,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:45,547 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-25 03:10:45,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214657696] [2020-09-25 03:10:45,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:10:45,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 03:10:45,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79939936] [2020-09-25 03:10:45,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:10:45,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:10:45,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:10:45,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:10:45,552 INFO L87 Difference]: Start difference. First operand 77 states and 104 transitions. Second operand 10 states. [2020-09-25 03:10:45,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:10:45,986 INFO L93 Difference]: Finished difference Result 179 states and 282 transitions. [2020-09-25 03:10:45,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 03:10:45,987 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2020-09-25 03:10:45,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:10:45,988 INFO L225 Difference]: With dead ends: 179 [2020-09-25 03:10:45,989 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 03:10:45,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2020-09-25 03:10:45,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 03:10:46,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 71. [2020-09-25 03:10:46,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-25 03:10:46,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2020-09-25 03:10:46,015 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 86 transitions. Word has length 69 [2020-09-25 03:10:46,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:10:46,015 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 86 transitions. [2020-09-25 03:10:46,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:10:46,016 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 86 transitions. [2020-09-25 03:10:46,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 03:10:46,018 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:46,018 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:46,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:10:46,018 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:46,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:46,019 INFO L82 PathProgramCache]: Analyzing trace with hash 261409208, now seen corresponding path program 2 times [2020-09-25 03:10:46,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:46,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811689047] [2020-09-25 03:10:46,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:46,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:46,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:46,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:46,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:46,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:46,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:49,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:51,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:10:51,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:10:51,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 03:10:51,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:51,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:10:51,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-25 03:10:51,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 03:10:51,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:51,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:10:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:51,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:51,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:10:51,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:51,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:10:51,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:51,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:10:51,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:51,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:10:51,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:51,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:10:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:51,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:51,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:56,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:56,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 03:10:56,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:10:56,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 03:10:56,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:10:56,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:56,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 03:10:56,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:56,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:56,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:56,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:56,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:56,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:56,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:10:56,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:10:56,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-09-25 03:10:56,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:56,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:10:56,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:56,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:10:56,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:56,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:56,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:56,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:56,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:56,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:56,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:10:56,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:56,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:10:56,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:56,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:56,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:56,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:10:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:56,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:56,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:56,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:56,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:56,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:10:56,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:56,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:10:56,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:56,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:10:56,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:56,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 03:10:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:56,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:56,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:56,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:10:56,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:56,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 03:10:56,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:56,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:10:56,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:56,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:10:56,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:56,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:10:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:56,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:56,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:56,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:10:56,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:56,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:10:56,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:56,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:10:56,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:56,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:56,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:56,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:10:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:56,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:56,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:10:56,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:10:56,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:10:56,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:10:56,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:10:56,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:10:56,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:10:56,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:10:56,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:10:56,882 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-25 03:10:56,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811689047] [2020-09-25 03:10:56,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:10:56,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 03:10:56,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241798128] [2020-09-25 03:10:56,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 03:10:56,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:10:56,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 03:10:56,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:10:56,884 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. Second operand 14 states. [2020-09-25 03:10:57,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:10:57,225 INFO L93 Difference]: Finished difference Result 117 states and 149 transitions. [2020-09-25 03:10:57,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 03:10:57,225 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 70 [2020-09-25 03:10:57,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:10:57,227 INFO L225 Difference]: With dead ends: 117 [2020-09-25 03:10:57,227 INFO L226 Difference]: Without dead ends: 111 [2020-09-25 03:10:57,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2020-09-25 03:10:57,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-25 03:10:57,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 89. [2020-09-25 03:10:57,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-25 03:10:57,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions. [2020-09-25 03:10:57,244 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 70 [2020-09-25 03:10:57,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:10:57,244 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 117 transitions. [2020-09-25 03:10:57,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 03:10:57,245 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2020-09-25 03:10:57,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-25 03:10:57,247 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:10:57,247 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:10:57,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:10:57,247 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:10:57,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:10:57,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1454949884, now seen corresponding path program 1 times [2020-09-25 03:10:57,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:10:57,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408958888] [2020-09-25 03:10:57,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:10:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:10:57,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:57,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:58,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:58,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:59,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:10:59,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:02,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:02,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-25 03:11:02,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 03:11:02,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 03:11:02,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:02,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:11:02,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 03:11:02,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 03:11:02,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:02,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:02,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:02,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:02,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:02,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:02,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:02,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:02,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:02,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:02,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:02,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:02,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:02,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:02,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:02,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:02,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:02,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:02,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:02,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:02,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:02,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:02,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:05,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:05,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:05,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:05,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:05,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:05,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:07,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:07,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 03:11:07,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 03:11:07,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 03:11:07,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:07,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:11:07,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 03:11:07,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:11:07,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:07,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:07,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:07,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:07,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:07,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:07,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:07,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:07,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:07,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:08,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:08,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:11:08,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 03:11:08,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 887 [2020-09-25 03:11:08,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:08,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:08,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:08,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 03:11:08,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:08,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:08,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:08,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:08,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:11:08,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:08,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:11:08,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:08,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:08,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:11:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:08,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:08,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:08,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:11:08,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:08,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:11:08,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:08,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:08,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:08,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:08,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:08,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 03:11:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:08,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:08,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:08,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:08,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:08,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:08,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:08,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:08,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking...