/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_7-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:45:41,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:45:41,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:45:42,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:45:42,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:45:42,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:45:42,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:45:42,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:45:42,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:45:42,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:45:42,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:45:42,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:45:42,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:45:42,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:45:42,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:45:42,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:45:42,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:45:42,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:45:42,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:45:42,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:45:42,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:45:42,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:45:42,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:45:42,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:45:42,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:45:42,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:45:42,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:45:42,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:45:42,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:45:42,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:45:42,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:45:42,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:45:42,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:45:42,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:45:42,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:45:42,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:45:42,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:45:42,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:45:42,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:45:42,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:45:42,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:45:42,077 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 07:45:42,119 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:45:42,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:45:42,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:45:42,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:45:42,121 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:45:42,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:45:42,122 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:45:42,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:45:42,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:45:42,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:45:42,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:45:42,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:45:42,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:45:42,125 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:45:42,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:45:42,125 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:45:42,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:45:42,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:45:42,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:45:42,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:45:42,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:45:42,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:45:42,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:45:42,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:45:42,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:45:42,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:45:42,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:45:42,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:45:42,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:45:42,128 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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:45:42,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:45:42,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:45:42,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:45:42,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:45:42,590 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:45:42,591 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_7-2.c [2020-09-25 07:45:42,683 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a538958a/8c8d6913c5cd4261bf979fcf48cc8c62/FLAG45c788389 [2020-09-25 07:45:43,222 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:45:43,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_7-2.c [2020-09-25 07:45:43,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a538958a/8c8d6913c5cd4261bf979fcf48cc8c62/FLAG45c788389 [2020-09-25 07:45:43,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a538958a/8c8d6913c5cd4261bf979fcf48cc8c62 [2020-09-25 07:45:43,583 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:45:43,589 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:45:43,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:45:43,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:45:43,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:45:43,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:45:43" (1/1) ... [2020-09-25 07:45:43,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d283ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:43, skipping insertion in model container [2020-09-25 07:45:43,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:45:43" (1/1) ... [2020-09-25 07:45:43,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:45:43,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:45:43,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:45:43,859 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:45:43,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:45:43,897 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:45:43,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:43 WrapperNode [2020-09-25 07:45:43,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:45:43,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:45:43,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:45:43,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:45:43,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:43" (1/1) ... [2020-09-25 07:45:43,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:43" (1/1) ... [2020-09-25 07:45:43,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:43" (1/1) ... [2020-09-25 07:45:43,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:43" (1/1) ... [2020-09-25 07:45:43,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:43" (1/1) ... [2020-09-25 07:45:43,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:43" (1/1) ... [2020-09-25 07:45:43,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:43" (1/1) ... [2020-09-25 07:45:43,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:45:43,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:45:43,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:45:43,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:45:43,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:43" (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 07:45:44,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:45:44,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:45:44,078 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 07:45:44,078 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:45:44,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:45:44,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:45:44,078 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 07:45:44,078 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:45:44,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:45:44,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:45:44,300 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:45:44,301 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:45:44,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:45:44 BoogieIcfgContainer [2020-09-25 07:45:44,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:45:44,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:45:44,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:45:44,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:45:44,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:45:43" (1/3) ... [2020-09-25 07:45:44,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b351be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:45:44, skipping insertion in model container [2020-09-25 07:45:44,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:43" (2/3) ... [2020-09-25 07:45:44,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b351be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:45:44, skipping insertion in model container [2020-09-25 07:45:44,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:45:44" (3/3) ... [2020-09-25 07:45:44,348 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_7-2.c [2020-09-25 07:45:44,375 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:45:44,389 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:45:44,414 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:45:44,443 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:45:44,444 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:45:44,444 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:45:44,444 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:45:44,444 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:45:44,445 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:45:44,445 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:45:44,445 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:45:44,469 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 07:45:44,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 07:45:44,476 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:44,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:44,478 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:44,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:44,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 07:45:44,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:44,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430796308] [2020-09-25 07:45:44,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:44,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:44,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:44,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:44,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:45:44,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:44,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-25 07:45:44,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:44,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:44,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:44,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 07:45:44,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:44,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:45:44,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:44,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:44,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:44,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:44,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:44,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:44,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:44,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:44,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:44,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:44,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:44,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:44,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:44,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:44,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:44,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:44,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:44,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:45:44,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:44,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:44,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:45:44,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:44,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:45:44,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:44,979 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 07:45:44,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430796308] [2020-09-25 07:45:44,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:44,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:45:44,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058891196] [2020-09-25 07:45:44,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:45:44,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:45,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:45:45,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:45:45,019 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 07:45:45,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:45,125 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 07:45:45,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:45:45,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 07:45:45,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:45,149 INFO L225 Difference]: With dead ends: 44 [2020-09-25 07:45:45,149 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 07:45:45,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 07:45:45,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 07:45:45,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 07:45:45,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 07:45:45,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 07:45:45,223 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 07:45:45,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:45,224 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 07:45:45,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:45:45,224 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 07:45:45,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 07:45:45,227 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:45,228 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 07:45:45,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:45:45,229 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:45,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:45,229 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 07:45:45,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:45,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101218643] [2020-09-25 07:45:45,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:45,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:45,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:45:45,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:45,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-25 07:45:45,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:45,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:45,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:45,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:45,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:45,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:45:45,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:45,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:45,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:45,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:45,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:45,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:45,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:45,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:45,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:45,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:45,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:45,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:45,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:45,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:45,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:45,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 07:45:45,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:45,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:45,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:45,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:45,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:45,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:45,581 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 07:45:45,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101218643] [2020-09-25 07:45:45,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:45,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:45:45,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294116471] [2020-09-25 07:45:45,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:45:45,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:45,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:45:45,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:45:45,585 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 07:45:45,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:45,655 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 07:45:45,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:45:45,656 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 07:45:45,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:45,658 INFO L225 Difference]: With dead ends: 36 [2020-09-25 07:45:45,658 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 07:45:45,659 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 07:45:45,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 07:45:45,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 07:45:45,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 07:45:45,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 07:45:45,668 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 07:45:45,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:45,668 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 07:45:45,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:45:45,668 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 07:45:45,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 07:45:45,670 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:45,670 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:45,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:45:45,671 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:45,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:45,672 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 07:45:45,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:45,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50666186] [2020-09-25 07:45:45,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:45,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:47,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 07:45:47,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:47,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1883 [2020-09-25 07:45:47,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:47,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:47,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:47,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 07:45:47,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:45:47,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:47,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:47,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:47,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:47,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:47,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:47,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:47,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:47,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:47,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:47,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:47,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:47,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:47,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:47,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:47,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:47,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-25 07:45:47,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:47,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:47,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:47,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:47,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 07:45:47,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:47,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:47,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:48,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:48,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:48,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:45:48,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:48,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:48,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:45:48,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:48,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:45:48,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:48,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:48,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:48,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:48,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:48,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 07:45:48,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:48,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:48,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:48,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:48,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:48,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:48,092 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 07:45:48,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50666186] [2020-09-25 07:45:48,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:48,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 07:45:48,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043108959] [2020-09-25 07:45:48,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:45:48,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:48,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:45:48,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:45:48,102 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 8 states. [2020-09-25 07:45:48,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:48,205 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2020-09-25 07:45:48,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:45:48,206 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-09-25 07:45:48,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:48,208 INFO L225 Difference]: With dead ends: 47 [2020-09-25 07:45:48,208 INFO L226 Difference]: Without dead ends: 41 [2020-09-25 07:45:48,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:45:48,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-25 07:45:48,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2020-09-25 07:45:48,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 07:45:48,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-25 07:45:48,228 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-25 07:45:48,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:48,228 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-25 07:45:48,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:45:48,229 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-25 07:45:48,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 07:45:48,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:48,234 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:48,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:45:48,234 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:48,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:48,235 INFO L82 PathProgramCache]: Analyzing trace with hash 795081563, now seen corresponding path program 1 times [2020-09-25 07:45:48,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:48,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705084116] [2020-09-25 07:45:48,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:48,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:49,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:51,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 07:45:51,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:45:51,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3230 [2020-09-25 07:45:51,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:51,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:51,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:51,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 07:45:51,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:45:51,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:51,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:51,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:51,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:51,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:51,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:51,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:51,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:51,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:51,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:51,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:51,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:51,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:51,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:52,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:45:52,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:52,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 899 [2020-09-25 07:45:52,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:52,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:52,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:45:52,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:52,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:52,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:52,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:52,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:52,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:45:52,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:52,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:52,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:45:52,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:52,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:45:52,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:52,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:52,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:52,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:52,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:52,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:45:52,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:52,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:52,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:52,545 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 07:45:52,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705084116] [2020-09-25 07:45:52,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:52,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:45:52,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092662186] [2020-09-25 07:45:52,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:45:52,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:52,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:45:52,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:52,550 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 9 states. [2020-09-25 07:45:52,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:52,679 INFO L93 Difference]: Finished difference Result 58 states and 75 transitions. [2020-09-25 07:45:52,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:45:52,683 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2020-09-25 07:45:52,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:52,686 INFO L225 Difference]: With dead ends: 58 [2020-09-25 07:45:52,686 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 07:45:52,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:45:52,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 07:45:52,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2020-09-25 07:45:52,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-25 07:45:52,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2020-09-25 07:45:52,709 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 34 [2020-09-25 07:45:52,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:52,709 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2020-09-25 07:45:52,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:45:52,712 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2020-09-25 07:45:52,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 07:45:52,714 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:52,715 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:52,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:45:52,715 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:52,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:52,715 INFO L82 PathProgramCache]: Analyzing trace with hash -643371531, now seen corresponding path program 2 times [2020-09-25 07:45:52,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:52,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1817779616] [2020-09-25 07:45:52,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:52,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:53,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:53,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 07:45:53,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:53,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 871 [2020-09-25 07:45:53,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:53,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:53,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:53,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:45:53,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:45:53,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:53,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:53,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:53,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:53,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:53,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:53,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:53,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:53,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:53,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:53,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:53,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:53,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:53,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:53,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:53,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:53,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:45:53,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:53,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 07:45:53,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:53,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:53,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:53,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:53,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:45:53,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:53,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:53,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:53,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:53,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:53,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:53,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:45:53,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:53,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:53,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:45:53,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:53,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:53,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:53,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:53,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:53,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:53,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:53,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:53,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:45:53,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:53,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:53,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:53,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:53,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:53,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:53,801 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 07:45:53,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1817779616] [2020-09-25 07:45:53,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:53,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:45:53,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679459756] [2020-09-25 07:45:53,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:45:53,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:53,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:45:53,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:53,806 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand 9 states. [2020-09-25 07:45:53,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:53,901 INFO L93 Difference]: Finished difference Result 63 states and 89 transitions. [2020-09-25 07:45:53,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:45:53,903 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2020-09-25 07:45:53,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:53,905 INFO L225 Difference]: With dead ends: 63 [2020-09-25 07:45:53,905 INFO L226 Difference]: Without dead ends: 57 [2020-09-25 07:45:53,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:45:53,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-09-25 07:45:53,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2020-09-25 07:45:53,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 07:45:53,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 80 transitions. [2020-09-25 07:45:53,931 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 80 transitions. Word has length 34 [2020-09-25 07:45:53,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:53,931 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 80 transitions. [2020-09-25 07:45:53,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:45:53,931 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 80 transitions. [2020-09-25 07:45:53,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 07:45:53,938 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:53,940 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:53,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:45:53,940 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:53,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:53,940 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 07:45:53,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:53,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821664269] [2020-09-25 07:45:53,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:53,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:53,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:54,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:55,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:45:55,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:45:55,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1452 [2020-09-25 07:45:55,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:55,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:55,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:45:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:45:55,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:45:55,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:55,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:55,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:55,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:55,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:55,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:55,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:55,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:55,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:55,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:55,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:55,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:55,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:55,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:55,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:55,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-09-25 07:45:55,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:55,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:55,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:55,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:55,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:55,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:55,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:55,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:55,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:55,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:55,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:45:55,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:55,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:45:55,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:55,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:55,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:55,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:55,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:56,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:56,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:56,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:45:56,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:56,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:56,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:56,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:56,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:56,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:56,018 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 07:45:56,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821664269] [2020-09-25 07:45:56,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:56,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:45:56,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462438512] [2020-09-25 07:45:56,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:45:56,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:56,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:45:56,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:56,022 INFO L87 Difference]: Start difference. First operand 54 states and 80 transitions. Second operand 9 states. [2020-09-25 07:45:56,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:56,115 INFO L93 Difference]: Finished difference Result 69 states and 99 transitions. [2020-09-25 07:45:56,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:45:56,117 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2020-09-25 07:45:56,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:56,119 INFO L225 Difference]: With dead ends: 69 [2020-09-25 07:45:56,119 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 07:45:56,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:45:56,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 07:45:56,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 54. [2020-09-25 07:45:56,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 07:45:56,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 80 transitions. [2020-09-25 07:45:56,139 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 80 transitions. Word has length 35 [2020-09-25 07:45:56,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:56,139 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 80 transitions. [2020-09-25 07:45:56,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:45:56,140 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 80 transitions. [2020-09-25 07:45:56,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 07:45:56,143 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:56,144 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:56,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:45:56,144 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:56,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:56,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1485744477, now seen corresponding path program 3 times [2020-09-25 07:45:56,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:56,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835987556] [2020-09-25 07:45:56,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:56,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:59,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:01,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 07:46:01,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 07:46:01,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:46:01,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:01,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:01,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:46:01,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:46:01,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 07:46:01,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:01,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:46:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:01,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:01,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:46:01,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:01,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:46:01,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:01,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:01,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:01,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:01,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:01,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:01,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:46:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:01,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:01,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:03,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:03,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 07:46:03,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:46:03,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2282 [2020-09-25 07:46:03,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:03,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:03,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:46:03,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:46:03,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 07:46:03,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:03,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:03,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:03,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:03,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:03,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:03,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:46:03,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:03,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:03,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:46:03,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:03,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:46:03,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:03,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:46:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:03,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:03,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:03,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:03,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:46:03,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:46:03,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 07:46:03,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:03,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:03,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:46:03,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:03,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:46:03,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:03,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:03,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:03,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:03,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:46:03,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:03,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:46:03,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:03,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:03,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:46:03,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:03,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:46:03,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:03,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:46:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:03,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:03,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:03,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:03,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:03,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:46:03,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:03,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:03,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:46:03,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:03,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:46:03,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:03,877 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 16 proven. 21 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-25 07:46:03,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835987556] [2020-09-25 07:46:03,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:46:03,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 07:46:03,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591817949] [2020-09-25 07:46:03,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:46:03,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:46:03,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:46:03,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:46:03,880 INFO L87 Difference]: Start difference. First operand 54 states and 80 transitions. Second operand 8 states. [2020-09-25 07:46:04,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:46:04,015 INFO L93 Difference]: Finished difference Result 142 states and 264 transitions. [2020-09-25 07:46:04,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:46:04,016 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-09-25 07:46:04,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:46:04,018 INFO L225 Difference]: With dead ends: 142 [2020-09-25 07:46:04,018 INFO L226 Difference]: Without dead ends: 94 [2020-09-25 07:46:04,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:46:04,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-09-25 07:46:04,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 68. [2020-09-25 07:46:04,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 07:46:04,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 95 transitions. [2020-09-25 07:46:04,037 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 95 transitions. Word has length 51 [2020-09-25 07:46:04,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:46:04,037 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 95 transitions. [2020-09-25 07:46:04,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:46:04,037 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 95 transitions. [2020-09-25 07:46:04,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 07:46:04,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:46:04,040 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:46:04,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:46:04,041 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:46:04,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:46:04,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1068467993, now seen corresponding path program 2 times [2020-09-25 07:46:04,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:46:04,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013020479] [2020-09-25 07:46:04,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:46:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:04,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:05,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:05,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:05,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:05,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:05,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:05,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:09,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 07:46:09,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 07:46:09,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 07:46:09,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:09,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:09,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:46:09,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:46:09,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 07:46:09,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:09,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:46:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:09,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:09,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:46:09,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:09,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:46:09,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:09,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:09,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:09,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:09,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:09,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:09,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:46:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:09,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:09,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:10,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:10,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:11,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:14,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 07:46:14,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 07:46:14,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:46:14,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:14,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:14,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:46:14,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:46:14,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 07:46:14,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:14,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:14,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:14,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:46:14,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:46:14,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 07:46:14,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:14,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:46:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:14,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 07:46:14,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:14,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:14,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:14,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:46:14,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:14,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:46:14,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:14,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:14,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:46:14,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:14,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:46:14,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:14,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:46:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:14,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:14,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:46:14,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:14,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 07:46:14,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:14,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:14,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:46:14,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:14,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:46:14,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:14,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 07:46:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:14,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:14,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:15,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:15,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:18,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:18,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 07:46:18,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 07:46:18,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4266 [2020-09-25 07:46:18,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:18,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:18,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:46:18,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:46:18,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 07:46:18,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:18,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:18,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:18,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:18,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:18,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:18,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:18,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:18,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:20,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:46:20,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:46:20,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1286 [2020-09-25 07:46:20,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:20,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:20,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:46:20,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:20,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 07:46:20,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:20,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:20,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:20,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:46:20,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:46:20,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 07:46:20,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:20,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:20,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:46:20,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:20,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:46:20,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:20,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:46:20,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:20,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:20,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:46:20,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:20,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:46:20,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:20,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:20,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:46:20,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:20,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:46:20,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:20,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 07:46:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:20,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:20,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:46:20,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:20,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:46:20,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:20,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:20,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:46:20,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:20,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:46:20,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:20,175 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 81 proven. 87 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-09-25 07:46:20,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2013020479] [2020-09-25 07:46:20,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:46:20,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:46:20,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393785444] [2020-09-25 07:46:20,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:46:20,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:46:20,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:46:20,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:46:20,178 INFO L87 Difference]: Start difference. First operand 68 states and 95 transitions. Second operand 10 states. [2020-09-25 07:46:20,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:46:20,447 INFO L93 Difference]: Finished difference Result 141 states and 221 transitions. [2020-09-25 07:46:20,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:46:20,447 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2020-09-25 07:46:20,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:46:20,451 INFO L225 Difference]: With dead ends: 141 [2020-09-25 07:46:20,451 INFO L226 Difference]: Without dead ends: 75 [2020-09-25 07:46:20,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:46:20,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-25 07:46:20,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 69. [2020-09-25 07:46:20,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-25 07:46:20,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 85 transitions. [2020-09-25 07:46:20,473 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 85 transitions. Word has length 89 [2020-09-25 07:46:20,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:46:20,474 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 85 transitions. [2020-09-25 07:46:20,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:46:20,474 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 85 transitions. [2020-09-25 07:46:20,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 07:46:20,478 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:46:20,478 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:46:20,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:46:20,478 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:46:20,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:46:20,479 INFO L82 PathProgramCache]: Analyzing trace with hash -527666429, now seen corresponding path program 4 times [2020-09-25 07:46:20,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:46:20,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469458823] [2020-09-25 07:46:20,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:46:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:20,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:20,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:21,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:22,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:22,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:22,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:25,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 07:46:25,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 07:46:25,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:46:25,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:25,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:25,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:46:25,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:46:25,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 07:46:25,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:25,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:46:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:25,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:25,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:46:25,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:25,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:46:25,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:25,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:25,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:25,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:25,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:25,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:25,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:46:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:25,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:25,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:26,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:26,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:26,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:27,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:30,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:30,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 07:46:30,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 07:46:30,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 07:46:30,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:30,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:30,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:46:30,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-25 07:46:30,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:46:30,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:30,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:30,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:30,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:30,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:30,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:31,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:31,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 07:46:31,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:46:31,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 558 [2020-09-25 07:46:31,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:31,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:31,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:31,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:31,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:31,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:31,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:31,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:31,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:31,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:46:31,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:31,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:46:31,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:31,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:31,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:31,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:31,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:31,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:31,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:46:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:31,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:31,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:31,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:46:31,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:31,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:46:31,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:31,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:31,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:31,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:31,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:31,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:31,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:31,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:31,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:31,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:46:31,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:31,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:46:31,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:31,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:31,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:31,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:31,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:46:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:31,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:31,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:31,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:31,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:31,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:46:31,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:31,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:31,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:31,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:31,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:31,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:31,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 07:46:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:31,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:31,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:31,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:31,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:31,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:31,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:32,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:32,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 07:46:32,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:46:32,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1483 [2020-09-25 07:46:32,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:32,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:46:32,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:46:32,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 07:46:32,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:32,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:32,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:32,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:32,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:32,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:32,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:32,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:33,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:33,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 07:46:33,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:46:33,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 901 [2020-09-25 07:46:33,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:33,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:33,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:46:33,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:33,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 07:46:33,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:33,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:33,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:33,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:33,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:46:33,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:33,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:46:33,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:33,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:33,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:46:33,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:33,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:46:33,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:33,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:46:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:33,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:33,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:33,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:33,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:33,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:46:33,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:46:33,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-25 07:46:33,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:33,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:33,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:46:33,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:33,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:46:33,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:33,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:33,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:33,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:33,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:46:33,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:33,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:46:33,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:33,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:46:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:46:33,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:46:33,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:46:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:33,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:33,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:33,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:46:33,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:33,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:46:33,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:33,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:33,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:46:33,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:33,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:46:33,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:33,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 07:46:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:33,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:33,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:33,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:46:33,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:33,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:46:33,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:33,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:33,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:46:33,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:46:33,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:46:33,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:33,974 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 245 proven. 33 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2020-09-25 07:46:33,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [469458823] [2020-09-25 07:46:33,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:46:33,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:46:33,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635112888] [2020-09-25 07:46:33,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:46:33,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:46:33,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:46:33,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:46:33,977 INFO L87 Difference]: Start difference. First operand 69 states and 85 transitions. Second operand 10 states. [2020-09-25 07:46:34,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:46:34,215 INFO L93 Difference]: Finished difference Result 140 states and 188 transitions. [2020-09-25 07:46:34,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:46:34,216 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 123 [2020-09-25 07:46:34,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:46:34,218 INFO L225 Difference]: With dead ends: 140 [2020-09-25 07:46:34,218 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 07:46:34,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 07:46:34,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 07:46:34,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 69. [2020-09-25 07:46:34,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-25 07:46:34,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 84 transitions. [2020-09-25 07:46:34,237 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 84 transitions. Word has length 123 [2020-09-25 07:46:34,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:46:34,238 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 84 transitions. [2020-09-25 07:46:34,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:46:34,239 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2020-09-25 07:46:34,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-25 07:46:34,241 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:46:34,241 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:46:34,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 07:46:34,242 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:46:34,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:46:34,242 INFO L82 PathProgramCache]: Analyzing trace with hash 404340408, now seen corresponding path program 5 times [2020-09-25 07:46:34,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:46:34,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461885298] [2020-09-25 07:46:34,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:46:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:34,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:34,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:34,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:34,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:34,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:34,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:34,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:34,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:34,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:36,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:39,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:39,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-25 07:46:39,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 07:46:39,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:46:39,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:39,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:39,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 07:46:39,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:46:39,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 07:46:39,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:39,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:46:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:39,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:39,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:39,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:46:39,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:39,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:46:39,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:39,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:39,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:39,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:39,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:39,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:39,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:46:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:39,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:39,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking...