/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-tiling/pnr5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 05:24:07,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 05:24:07,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 05:24:07,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 05:24:07,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 05:24:07,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 05:24:07,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 05:24:07,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 05:24:07,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 05:24:07,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 05:24:07,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 05:24:07,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 05:24:07,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 05:24:07,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 05:24:07,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 05:24:07,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 05:24:07,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 05:24:07,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 05:24:07,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 05:24:07,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 05:24:07,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 05:24:07,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 05:24:07,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 05:24:07,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 05:24:07,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 05:24:07,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 05:24:07,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 05:24:07,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 05:24:07,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 05:24:07,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 05:24:07,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 05:24:07,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 05:24:07,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 05:24:07,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 05:24:07,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 05:24:07,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 05:24:07,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 05:24:07,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 05:24:07,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 05:24:07,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 05:24:07,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 05:24:07,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 05:24:07,929 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 05:24:07,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 05:24:07,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 05:24:07,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 05:24:07,931 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 05:24:07,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 05:24:07,932 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 05:24:07,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 05:24:07,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 05:24:07,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 05:24:07,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 05:24:07,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 05:24:07,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 05:24:07,935 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 05:24:07,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 05:24:07,935 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 05:24:07,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 05:24:07,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 05:24:07,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 05:24:07,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 05:24:07,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 05:24:07,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 05:24:07,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 05:24:07,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 05:24:07,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 05:24:07,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 05:24:07,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 05:24:07,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 05:24:07,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 05:24:07,938 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 05:24:08,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 05:24:08,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 05:24:08,261 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 05:24:08,262 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 05:24:08,263 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 05:24:08,264 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/pnr5.c [2020-10-13 05:24:08,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/713b71c09/fbb701a2c8a34e06894f88bed0e3fa10/FLAGd8e73fc57 [2020-10-13 05:24:08,803 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 05:24:08,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-tiling/pnr5.c [2020-10-13 05:24:08,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/713b71c09/fbb701a2c8a34e06894f88bed0e3fa10/FLAGd8e73fc57 [2020-10-13 05:24:09,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/713b71c09/fbb701a2c8a34e06894f88bed0e3fa10 [2020-10-13 05:24:09,191 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 05:24:09,193 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 05:24:09,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 05:24:09,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 05:24:09,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 05:24:09,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:24:09" (1/1) ... [2020-10-13 05:24:09,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d574d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:24:09, skipping insertion in model container [2020-10-13 05:24:09,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:24:09" (1/1) ... [2020-10-13 05:24:09,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 05:24:09,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 05:24:09,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:24:09,438 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 05:24:09,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:24:09,487 INFO L208 MainTranslator]: Completed translation [2020-10-13 05:24:09,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:24:09 WrapperNode [2020-10-13 05:24:09,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 05:24:09,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 05:24:09,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 05:24:09,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 05:24:09,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:24:09" (1/1) ... [2020-10-13 05:24:09,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:24:09" (1/1) ... [2020-10-13 05:24:09,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:24:09" (1/1) ... [2020-10-13 05:24:09,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:24:09" (1/1) ... [2020-10-13 05:24:09,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:24:09" (1/1) ... [2020-10-13 05:24:09,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:24:09" (1/1) ... [2020-10-13 05:24:09,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:24:09" (1/1) ... [2020-10-13 05:24:09,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 05:24:09,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 05:24:09,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 05:24:09,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 05:24:09,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:24:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 05:24:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 05:24:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 05:24:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 05:24:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 05:24:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadFromPort [2020-10-13 05:24:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 05:24:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 05:24:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 05:24:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 05:24:09,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 05:24:09,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 05:24:09,677 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 05:24:09,677 INFO L130 BoogieDeclarations]: Found specification of procedure ReadFromPort [2020-10-13 05:24:09,677 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 05:24:09,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 05:24:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 05:24:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 05:24:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 05:24:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 05:24:09,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 05:24:09,964 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 05:24:09,965 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-13 05:24:09,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:24:09 BoogieIcfgContainer [2020-10-13 05:24:09,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 05:24:09,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 05:24:09,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 05:24:09,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 05:24:09,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:24:09" (1/3) ... [2020-10-13 05:24:09,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d49f65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:24:09, skipping insertion in model container [2020-10-13 05:24:09,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:24:09" (2/3) ... [2020-10-13 05:24:09,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d49f65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:24:09, skipping insertion in model container [2020-10-13 05:24:09,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:24:09" (3/3) ... [2020-10-13 05:24:09,979 INFO L109 eAbstractionObserver]: Analyzing ICFG pnr5.c [2020-10-13 05:24:09,991 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 05:24:09,999 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 05:24:10,014 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 05:24:10,041 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 05:24:10,042 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 05:24:10,042 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 05:24:10,042 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 05:24:10,042 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 05:24:10,042 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 05:24:10,043 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 05:24:10,043 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 05:24:10,064 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-13 05:24:10,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-13 05:24:10,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:10,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:10,072 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:10,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:10,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1320123379, now seen corresponding path program 1 times [2020-10-13 05:24:10,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:10,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014935917] [2020-10-13 05:24:10,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:10,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:10,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:10,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:10,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 05:24:10,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:24:10,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-13 05:24:10,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 05:24:10,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:10,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 05:24:10,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:10,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:10,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:10,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:10,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:10,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 05:24:10,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:10,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:10,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:10,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:10,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:10,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:10,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:10,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:10,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:10,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:10,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 05:24:10,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:10,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:10,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 05:24:10,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:10,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:10,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:24:10,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014935917] [2020-10-13 05:24:10,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:24:10,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:24:10,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652431398] [2020-10-13 05:24:10,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:24:10,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:10,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:24:10,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:24:10,576 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 3 states. [2020-10-13 05:24:10,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:10,727 INFO L93 Difference]: Finished difference Result 89 states and 119 transitions. [2020-10-13 05:24:10,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:24:10,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-10-13 05:24:10,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:10,738 INFO L225 Difference]: With dead ends: 89 [2020-10-13 05:24:10,738 INFO L226 Difference]: Without dead ends: 45 [2020-10-13 05:24:10,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:24:10,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-13 05:24:10,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-13 05:24:10,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-13 05:24:10,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2020-10-13 05:24:10,785 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 21 [2020-10-13 05:24:10,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:10,786 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2020-10-13 05:24:10,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:24:10,786 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2020-10-13 05:24:10,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-13 05:24:10,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:10,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:10,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 05:24:10,789 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:10,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:10,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1902018782, now seen corresponding path program 1 times [2020-10-13 05:24:10,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:10,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645148269] [2020-10-13 05:24:10,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:10,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:10,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:10,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:11,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:11,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:11,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 05:24:11,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 05:24:11,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-10-13 05:24:11,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 05:24:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 05:24:11,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 05:24:11,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:11,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:11,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:11,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:11,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:11,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:11,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:11,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:11,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:11,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:11,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:11,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:11,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:11,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:11,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:11,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:11,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:11,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 05:24:11,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:11,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 05:24:11,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:11,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:24:11,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:11,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:24:11,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645148269] [2020-10-13 05:24:11,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:24:11,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 05:24:11,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727150353] [2020-10-13 05:24:11,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 05:24:11,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:11,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 05:24:11,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-13 05:24:11,507 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand 9 states. [2020-10-13 05:24:12,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:12,148 INFO L93 Difference]: Finished difference Result 78 states and 100 transitions. [2020-10-13 05:24:12,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 05:24:12,149 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-13 05:24:12,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:12,151 INFO L225 Difference]: With dead ends: 78 [2020-10-13 05:24:12,151 INFO L226 Difference]: Without dead ends: 66 [2020-10-13 05:24:12,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-10-13 05:24:12,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-13 05:24:12,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 46. [2020-10-13 05:24:12,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-13 05:24:12,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2020-10-13 05:24:12,170 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 21 [2020-10-13 05:24:12,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:12,171 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2020-10-13 05:24:12,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 05:24:12,171 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2020-10-13 05:24:12,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-13 05:24:12,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:12,173 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:12,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 05:24:12,174 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:12,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:12,174 INFO L82 PathProgramCache]: Analyzing trace with hash -628487538, now seen corresponding path program 1 times [2020-10-13 05:24:12,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:12,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821352428] [2020-10-13 05:24:12,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:12,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:12,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:12,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 05:24:12,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:12,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-13 05:24:12,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:12,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:24:12,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 05:24:12,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-13 05:24:12,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:12,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:12,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:12,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:12,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:12,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:12,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:12,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:12,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:12,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:12,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:12,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:12,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:12,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:12,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:12,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:12,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:12,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 05:24:12,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:12,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:12,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:12,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:12,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:12,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:12,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:12,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:12,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:12,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:12,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:12,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:12,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:12,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:12,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:12,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:12,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:12,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:12,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:12,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:12,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:12,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:12,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:12,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:12,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:12,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:12,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:12,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:12,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:12,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:12,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:12,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:12,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:12,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:12,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:12,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:12,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:12,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:12,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:12,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:12,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:12,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:12,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:12,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:12,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:12,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:12,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:12,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:12,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:12,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:12,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:12,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 05:24:12,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:12,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:12,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:12,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:12,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:12,822 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 05:24:12,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821352428] [2020-10-13 05:24:12,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:12,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 05:24:12,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585411955] [2020-10-13 05:24:12,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 05:24:12,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:12,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 05:24:12,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-13 05:24:12,828 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand 11 states. [2020-10-13 05:24:13,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:13,572 INFO L93 Difference]: Finished difference Result 72 states and 92 transitions. [2020-10-13 05:24:13,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 05:24:13,573 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 53 [2020-10-13 05:24:13,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:13,575 INFO L225 Difference]: With dead ends: 72 [2020-10-13 05:24:13,575 INFO L226 Difference]: Without dead ends: 70 [2020-10-13 05:24:13,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2020-10-13 05:24:13,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-13 05:24:13,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 52. [2020-10-13 05:24:13,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-13 05:24:13,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2020-10-13 05:24:13,588 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 53 [2020-10-13 05:24:13,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:13,589 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2020-10-13 05:24:13,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 05:24:13,589 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2020-10-13 05:24:13,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-13 05:24:13,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:13,591 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:13,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 05:24:13,592 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:13,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:13,592 INFO L82 PathProgramCache]: Analyzing trace with hash -548541077, now seen corresponding path program 1 times [2020-10-13 05:24:13,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:13,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324780123] [2020-10-13 05:24:13,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:13,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:13,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:13,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-13 05:24:13,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:13,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-13 05:24:13,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:13,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 05:24:13,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:24:13,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 05:24:13,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:14,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:14,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:14,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:14,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:14,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:14,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:14,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:14,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:14,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:14,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:14,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:14,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:14,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:14,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:14,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:14,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:14,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:14,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:14,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:14,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:14,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:14,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:14,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:14,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:14,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:14,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:14,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:14,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:14,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:14,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:14,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:14,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:14,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:14,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:14,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:14,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:14,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:14,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:14,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:14,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:14,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:14,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:14,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:14,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:14,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:14,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:14,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:14,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:14,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:14,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 05:24:14,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:14,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:14,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:14,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:14,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:14,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:14,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:14,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:14,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:14,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:14,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:14,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:14,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:14,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:14,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:14,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:14,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:14,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:14,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:14,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:24:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:14,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:14,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:14,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:14,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:14,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:14,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:14,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:14,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:14,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:14,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:14,108 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 05:24:14,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324780123] [2020-10-13 05:24:14,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:14,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 05:24:14,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833744489] [2020-10-13 05:24:14,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 05:24:14,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:14,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 05:24:14,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-13 05:24:14,111 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand 11 states. [2020-10-13 05:24:14,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:14,914 INFO L93 Difference]: Finished difference Result 164 states and 233 transitions. [2020-10-13 05:24:14,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 05:24:14,915 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 61 [2020-10-13 05:24:14,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:14,921 INFO L225 Difference]: With dead ends: 164 [2020-10-13 05:24:14,921 INFO L226 Difference]: Without dead ends: 162 [2020-10-13 05:24:14,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2020-10-13 05:24:14,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-13 05:24:14,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 80. [2020-10-13 05:24:14,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-13 05:24:14,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 102 transitions. [2020-10-13 05:24:14,960 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 102 transitions. Word has length 61 [2020-10-13 05:24:14,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:14,962 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 102 transitions. [2020-10-13 05:24:14,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 05:24:14,962 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 102 transitions. [2020-10-13 05:24:14,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-13 05:24:14,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:14,970 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:14,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 05:24:14,970 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:14,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:14,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1392546579, now seen corresponding path program 1 times [2020-10-13 05:24:14,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:14,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804081111] [2020-10-13 05:24:14,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:15,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:15,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:15,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:15,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-13 05:24:15,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:24:15,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 522 [2020-10-13 05:24:15,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:15,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 05:24:15,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:24:15,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 05:24:15,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:15,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:15,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:15,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:15,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:15,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:15,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:15,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:15,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:15,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:15,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:15,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:15,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:15,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:15,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:15,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:15,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:15,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:15,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:15,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:15,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:15,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:15,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:15,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:15,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:15,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:15,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:15,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:15,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:15,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:15,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:15,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:15,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:15,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:15,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:15,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:15,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:15,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:15,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:15,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:15,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:15,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:15,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:15,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:15,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:15,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:15,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:15,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:15,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:15,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:15,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 05:24:15,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:15,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:15,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:15,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:15,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:15,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:15,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:15,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:15,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:15,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:15,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:15,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:15,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:15,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:15,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:15,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:24:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:15,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:15,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:15,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:15,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:15,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 05:24:15,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:15,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 05:24:15,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:15,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:24:15,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:15,859 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 05:24:15,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804081111] [2020-10-13 05:24:15,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:15,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-13 05:24:15,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364636199] [2020-10-13 05:24:15,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 05:24:15,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:15,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 05:24:15,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-13 05:24:15,863 INFO L87 Difference]: Start difference. First operand 80 states and 102 transitions. Second operand 15 states. [2020-10-13 05:24:17,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:17,430 INFO L93 Difference]: Finished difference Result 219 states and 318 transitions. [2020-10-13 05:24:17,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 05:24:17,431 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 61 [2020-10-13 05:24:17,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:17,435 INFO L225 Difference]: With dead ends: 219 [2020-10-13 05:24:17,435 INFO L226 Difference]: Without dead ends: 217 [2020-10-13 05:24:17,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=148, Invalid=908, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 05:24:17,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-13 05:24:17,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 106. [2020-10-13 05:24:17,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-13 05:24:17,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 141 transitions. [2020-10-13 05:24:17,460 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 141 transitions. Word has length 61 [2020-10-13 05:24:17,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:17,461 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 141 transitions. [2020-10-13 05:24:17,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 05:24:17,461 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 141 transitions. [2020-10-13 05:24:17,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-13 05:24:17,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:17,462 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:17,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 05:24:17,463 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:17,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:17,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1816193301, now seen corresponding path program 1 times [2020-10-13 05:24:17,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:17,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088948606] [2020-10-13 05:24:17,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:17,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:17,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:17,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-13 05:24:17,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:17,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-13 05:24:17,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:17,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:24:17,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 05:24:17,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 05:24:17,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:17,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:17,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:17,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:17,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:17,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:17,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:17,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:17,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:17,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:17,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:17,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:17,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:17,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:17,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:17,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:17,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:17,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:17,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:17,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:17,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:17,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:17,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:17,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:17,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:17,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:17,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:17,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:17,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:17,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:17,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:17,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:17,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:17,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:17,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:17,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:17,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:17,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:17,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:17,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:17,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:17,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:17,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:17,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:17,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:17,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:17,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:17,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:17,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:17,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:17,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:17,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:17,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:17,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:17,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:17,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:17,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:17,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:17,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:17,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:17,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:17,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:17,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:17,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:17,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:17,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:17,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:17,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:17,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:17,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:17,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:17,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:17,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:17,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:17,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:17,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:17,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:17,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:17,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:24:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:17,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:17,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:17,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:17,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:17,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:17,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:17,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:17,916 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 05:24:17,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088948606] [2020-10-13 05:24:17,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:17,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 05:24:17,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741680852] [2020-10-13 05:24:17,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 05:24:17,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:17,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 05:24:17,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-13 05:24:17,919 INFO L87 Difference]: Start difference. First operand 106 states and 141 transitions. Second operand 12 states. [2020-10-13 05:24:18,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:18,592 INFO L93 Difference]: Finished difference Result 177 states and 248 transitions. [2020-10-13 05:24:18,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 05:24:18,592 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 61 [2020-10-13 05:24:18,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:18,595 INFO L225 Difference]: With dead ends: 177 [2020-10-13 05:24:18,595 INFO L226 Difference]: Without dead ends: 175 [2020-10-13 05:24:18,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2020-10-13 05:24:18,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-13 05:24:18,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 60. [2020-10-13 05:24:18,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-13 05:24:18,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2020-10-13 05:24:18,609 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 61 [2020-10-13 05:24:18,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:18,609 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2020-10-13 05:24:18,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 05:24:18,610 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2020-10-13 05:24:18,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-13 05:24:18,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:18,611 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:18,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 05:24:18,611 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:18,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:18,611 INFO L82 PathProgramCache]: Analyzing trace with hash -635198648, now seen corresponding path program 2 times [2020-10-13 05:24:18,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:18,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932360265] [2020-10-13 05:24:18,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:18,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:18,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:19,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:19,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 05:24:19,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:24:19,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 684 [2020-10-13 05:24:19,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:19,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 05:24:19,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:24:19,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 05:24:19,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:19,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:19,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:19,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:19,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:19,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:19,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:19,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:19,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:19,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:19,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:19,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:19,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:19,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:19,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:19,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:19,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:19,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:19,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:19,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:19,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:19,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:19,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:19,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:19,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:19,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:19,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:19,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:19,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:19,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:19,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:19,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:19,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:19,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:19,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:19,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:19,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:19,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:19,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:19,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:19,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:19,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:19,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:19,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:19,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:19,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:19,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:19,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:19,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:19,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:19,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:19,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:19,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:19,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:19,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:19,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:19,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:19,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:19,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:19,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:19,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:19,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:19,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:19,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:19,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:19,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:19,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:19,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:19,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:19,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:19,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:19,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:19,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:24:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:19,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:19,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:19,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:19,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:19,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 05:24:19,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:19,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 05:24:19,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:19,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:24:19,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:19,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 05:24:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:19,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:19,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:19,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:19,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:19,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:19,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:19,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:19,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:19,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:19,655 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-13 05:24:19,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932360265] [2020-10-13 05:24:19,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:19,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-13 05:24:19,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008475834] [2020-10-13 05:24:19,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-13 05:24:19,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:19,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-13 05:24:19,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2020-10-13 05:24:19,659 INFO L87 Difference]: Start difference. First operand 60 states and 70 transitions. Second operand 17 states. [2020-10-13 05:24:22,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:22,112 INFO L93 Difference]: Finished difference Result 255 states and 369 transitions. [2020-10-13 05:24:22,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-13 05:24:22,112 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 69 [2020-10-13 05:24:22,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:22,116 INFO L225 Difference]: With dead ends: 255 [2020-10-13 05:24:22,117 INFO L226 Difference]: Without dead ends: 253 [2020-10-13 05:24:22,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=264, Invalid=1898, Unknown=0, NotChecked=0, Total=2162 [2020-10-13 05:24:22,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-13 05:24:22,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 92. [2020-10-13 05:24:22,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-13 05:24:22,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 115 transitions. [2020-10-13 05:24:22,151 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 115 transitions. Word has length 69 [2020-10-13 05:24:22,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:22,152 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 115 transitions. [2020-10-13 05:24:22,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-13 05:24:22,152 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 115 transitions. [2020-10-13 05:24:22,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-13 05:24:22,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:22,153 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:22,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 05:24:22,154 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:22,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:22,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1294730170, now seen corresponding path program 1 times [2020-10-13 05:24:22,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:22,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181526813] [2020-10-13 05:24:22,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:22,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:22,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:22,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 05:24:22,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:22,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-13 05:24:22,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:22,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 05:24:22,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:24:22,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 05:24:22,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:22,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:22,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:22,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:22,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:22,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:22,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:22,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:22,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:22,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:22,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:22,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:22,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:22,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:22,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:22,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:22,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:22,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:22,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:22,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:22,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:22,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:22,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:22,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:22,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:22,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:22,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:22,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:22,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:22,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:22,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:22,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:22,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:22,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:22,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:22,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:22,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:22,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:22,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:22,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:22,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:22,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:22,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:22,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:22,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:22,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:22,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:22,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:22,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:22,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:22,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:22,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:22,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:22,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:22,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:22,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:22,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:22,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:22,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:22,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:22,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:22,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:22,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:22,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:22,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:22,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:22,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:22,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:22,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:22,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:22,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:22,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:22,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:22,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:22,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:24:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:22,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:22,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:22,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:22,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:22,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:22,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:22,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:22,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:22,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:22,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:22,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 05:24:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:22,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:22,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:22,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:22,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:22,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:22,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:22,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:22,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:22,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:22,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:22,639 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-13 05:24:22,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181526813] [2020-10-13 05:24:22,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:22,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 05:24:22,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125643298] [2020-10-13 05:24:22,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 05:24:22,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:22,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 05:24:22,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-13 05:24:22,641 INFO L87 Difference]: Start difference. First operand 92 states and 115 transitions. Second operand 12 states. [2020-10-13 05:24:23,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:23,939 INFO L93 Difference]: Finished difference Result 287 states and 415 transitions. [2020-10-13 05:24:23,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 05:24:23,940 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-10-13 05:24:23,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:23,945 INFO L225 Difference]: With dead ends: 287 [2020-10-13 05:24:23,945 INFO L226 Difference]: Without dead ends: 285 [2020-10-13 05:24:23,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2020-10-13 05:24:23,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-13 05:24:23,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 109. [2020-10-13 05:24:23,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-13 05:24:23,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 143 transitions. [2020-10-13 05:24:23,979 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 143 transitions. Word has length 69 [2020-10-13 05:24:23,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:23,981 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 143 transitions. [2020-10-13 05:24:23,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 05:24:23,981 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 143 transitions. [2020-10-13 05:24:23,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-13 05:24:23,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:23,983 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:23,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 05:24:23,983 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:23,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:23,984 INFO L82 PathProgramCache]: Analyzing trace with hash -619679930, now seen corresponding path program 1 times [2020-10-13 05:24:23,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:23,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814147933] [2020-10-13 05:24:23,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:24,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:24,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:24,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 05:24:24,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:24,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-13 05:24:24,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:24:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 05:24:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 05:24:24,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:24,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:24,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:24,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:24,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:24,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:24,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:24,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:24,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:24,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:24,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:24,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:24,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:24,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:24,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:24,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:24,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:24,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:24,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:24,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:24,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:24,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:24,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:24,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:24,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:24,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:24,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:24,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:24,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:24,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:24,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:24,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:24,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:24,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:24,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:24,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:24,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:24,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:24,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:24,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:24,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:24,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:24,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:24,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:24,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:24,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:24,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:24,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:24,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:24,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:24,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:24,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:24,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:24,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:24,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:24,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:24,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:24,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:24,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:24,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:24,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:24,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:24,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:24,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:24,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:24,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:24,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:24,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:24,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:24,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:24,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:24,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:24,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:24,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:24,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:24,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:24,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:24,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:24:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:24,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:24,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:24,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:24,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:24,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:24,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:24,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:24,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:24,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:24,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:24,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 05:24:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:24,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:24,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:24,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:24,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:24,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:24,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:24,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:24,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:24,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:24,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:24,520 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-13 05:24:24,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814147933] [2020-10-13 05:24:24,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:24,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 05:24:24,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627580647] [2020-10-13 05:24:24,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:24:24,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:24,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:24:24,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:24:24,531 INFO L87 Difference]: Start difference. First operand 109 states and 143 transitions. Second operand 13 states. [2020-10-13 05:24:25,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:25,429 INFO L93 Difference]: Finished difference Result 213 states and 303 transitions. [2020-10-13 05:24:25,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 05:24:25,431 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 69 [2020-10-13 05:24:25,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:25,433 INFO L225 Difference]: With dead ends: 213 [2020-10-13 05:24:25,433 INFO L226 Difference]: Without dead ends: 211 [2020-10-13 05:24:25,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2020-10-13 05:24:25,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-10-13 05:24:25,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 68. [2020-10-13 05:24:25,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-13 05:24:25,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2020-10-13 05:24:25,446 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 69 [2020-10-13 05:24:25,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:25,446 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2020-10-13 05:24:25,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:24:25,446 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2020-10-13 05:24:25,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-13 05:24:25,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:25,447 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:25,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 05:24:25,448 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:25,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:25,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1853346779, now seen corresponding path program 3 times [2020-10-13 05:24:25,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:25,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2128491678] [2020-10-13 05:24:25,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:25,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:25,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:25,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 05:24:25,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:25,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-10-13 05:24:25,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 05:24:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:24:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 05:24:25,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:25,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:25,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:25,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:25,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:25,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:25,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:25,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:25,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:25,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:25,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:25,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:25,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:25,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:25,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:25,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:25,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:25,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:25,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:25,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:25,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:25,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:25,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:25,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:25,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:25,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:25,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:25,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:25,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:25,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:25,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:25,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:25,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:25,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:25,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:25,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:25,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:25,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:25,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:25,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:25,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:25,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:25,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:25,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:25,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:25,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:25,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:25,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:25,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:25,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:25,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:25,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:25,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:25,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:25,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:25,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:25,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:25,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:25,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:25,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:25,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:25,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:25,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:25,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:25,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:25,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:25,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:25,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:25,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:25,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:25,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:24:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:25,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:25,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:25,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:25,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:25,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:25,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:25,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:25,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:25,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:25,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:25,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 05:24:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:25,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:25,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:25,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:25,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:25,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:25,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:25,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:25,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:25,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:25,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:25,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:24:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:25,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:25,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:25,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:25,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:25,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:25,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:25,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:25,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:25,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:25,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:25,976 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-13 05:24:25,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2128491678] [2020-10-13 05:24:25,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:25,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 05:24:25,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700219566] [2020-10-13 05:24:25,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:24:25,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:25,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:24:25,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:24:25,978 INFO L87 Difference]: Start difference. First operand 68 states and 78 transitions. Second operand 13 states. [2020-10-13 05:24:28,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:28,008 INFO L93 Difference]: Finished difference Result 356 states and 522 transitions. [2020-10-13 05:24:28,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-13 05:24:28,008 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 77 [2020-10-13 05:24:28,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:28,012 INFO L225 Difference]: With dead ends: 356 [2020-10-13 05:24:28,012 INFO L226 Difference]: Without dead ends: 354 [2020-10-13 05:24:28,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=278, Invalid=1362, Unknown=0, NotChecked=0, Total=1640 [2020-10-13 05:24:28,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-10-13 05:24:28,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 104. [2020-10-13 05:24:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-13 05:24:28,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2020-10-13 05:24:28,032 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 77 [2020-10-13 05:24:28,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:28,032 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2020-10-13 05:24:28,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:24:28,032 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-10-13 05:24:28,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-13 05:24:28,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:28,033 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:28,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 05:24:28,034 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:28,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:28,034 INFO L82 PathProgramCache]: Analyzing trace with hash 596253351, now seen corresponding path program 1 times [2020-10-13 05:24:28,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:28,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185907258] [2020-10-13 05:24:28,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:28,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:28,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:28,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:29,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:29,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 05:24:29,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:24:29,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-10-13 05:24:29,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:29,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 05:24:29,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:24:29,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 05:24:29,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:29,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:29,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:29,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:29,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:29,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:29,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 05:24:29,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:29,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:29,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:29,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:29,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:29,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:29,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:29,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:29,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:29,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:29,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:29,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:29,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:29,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:29,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:29,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:29,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:29,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:29,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:29,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:29,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:29,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:29,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:29,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:29,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:29,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:29,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:29,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:29,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:29,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:29,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:29,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:29,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:29,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:29,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:29,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:29,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:29,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:29,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:29,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 05:24:29,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:29,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:29,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:29,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:29,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:29,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:29,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:29,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:29,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:29,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:29,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:29,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:29,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:29,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:29,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:29,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:29,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:29,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:29,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:29,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:29,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:29,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:29,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:29,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:29,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:29,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:24:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:29,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:29,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:29,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:29,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:29,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:29,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:29,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:29,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:29,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:29,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:29,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 05:24:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:29,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:29,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:29,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:29,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:29,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:29,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:29,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:29,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:24:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:29,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:29,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:29,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:29,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:29,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 05:24:29,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:29,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 05:24:29,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:29,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:24:29,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:29,573 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 11 proven. 20 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 05:24:29,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185907258] [2020-10-13 05:24:29,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:29,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 05:24:29,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012838049] [2020-10-13 05:24:29,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 05:24:29,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:29,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 05:24:29,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-10-13 05:24:29,577 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand 18 states. [2020-10-13 05:24:31,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:31,508 INFO L93 Difference]: Finished difference Result 246 states and 342 transitions. [2020-10-13 05:24:31,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-13 05:24:31,509 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 77 [2020-10-13 05:24:31,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:31,511 INFO L225 Difference]: With dead ends: 246 [2020-10-13 05:24:31,511 INFO L226 Difference]: Without dead ends: 244 [2020-10-13 05:24:31,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=210, Invalid=1512, Unknown=0, NotChecked=0, Total=1722 [2020-10-13 05:24:31,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-10-13 05:24:31,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 121. [2020-10-13 05:24:31,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-13 05:24:31,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 156 transitions. [2020-10-13 05:24:31,532 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 156 transitions. Word has length 77 [2020-10-13 05:24:31,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:31,532 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 156 transitions. [2020-10-13 05:24:31,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 05:24:31,532 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 156 transitions. [2020-10-13 05:24:31,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-13 05:24:31,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:31,534 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:31,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 05:24:31,534 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:31,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:31,534 INFO L82 PathProgramCache]: Analyzing trace with hash -297232987, now seen corresponding path program 1 times [2020-10-13 05:24:31,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:31,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1131111160] [2020-10-13 05:24:31,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:31,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:31,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:32,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:32,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 05:24:32,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:24:32,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-10-13 05:24:32,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:32,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 05:24:32,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:24:32,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 05:24:32,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:32,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:32,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:32,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:32,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:32,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:32,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:32,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:32,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:32,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:32,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:32,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:32,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:32,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:32,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:32,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:32,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:32,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:32,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:32,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:32,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:32,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:32,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:32,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:32,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:32,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:32,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:32,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:32,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:32,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:32,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:32,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:32,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:32,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:32,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:32,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:32,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:32,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:32,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:32,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:32,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:32,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:32,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:32,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:32,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:32,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:32,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:32,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:32,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:32,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:32,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:32,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:32,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:32,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:32,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:32,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:32,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:32,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:32,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:32,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:32,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:32,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:32,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:32,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:32,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:32,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:32,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:32,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:32,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:32,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:32,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:32,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:32,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:24:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:32,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:32,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:32,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:32,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:32,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 05:24:32,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:32,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 05:24:32,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:32,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:24:32,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:32,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 05:24:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:32,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:32,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:32,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:32,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:32,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:32,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:32,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:32,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:32,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:32,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:32,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:24:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:32,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:32,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:32,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:32,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:32,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:32,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:32,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:32,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:32,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:32,496 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 5 proven. 26 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 05:24:32,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1131111160] [2020-10-13 05:24:32,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:32,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 05:24:32,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213400289] [2020-10-13 05:24:32,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 05:24:32,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:32,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 05:24:32,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2020-10-13 05:24:32,500 INFO L87 Difference]: Start difference. First operand 121 states and 156 transitions. Second operand 18 states. [2020-10-13 05:24:36,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:36,548 INFO L93 Difference]: Finished difference Result 474 states and 689 transitions. [2020-10-13 05:24:36,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-10-13 05:24:36,549 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 77 [2020-10-13 05:24:36,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:36,553 INFO L225 Difference]: With dead ends: 474 [2020-10-13 05:24:36,553 INFO L226 Difference]: Without dead ends: 472 [2020-10-13 05:24:36,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1433 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=581, Invalid=4531, Unknown=0, NotChecked=0, Total=5112 [2020-10-13 05:24:36,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-10-13 05:24:36,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 127. [2020-10-13 05:24:36,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-13 05:24:36,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 166 transitions. [2020-10-13 05:24:36,580 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 166 transitions. Word has length 77 [2020-10-13 05:24:36,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:36,580 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 166 transitions. [2020-10-13 05:24:36,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 05:24:36,580 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 166 transitions. [2020-10-13 05:24:36,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-13 05:24:36,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:36,582 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:36,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 05:24:36,582 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:36,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:36,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1558150237, now seen corresponding path program 1 times [2020-10-13 05:24:36,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:36,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1346294272] [2020-10-13 05:24:36,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:36,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:36,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:36,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 05:24:36,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:36,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-13 05:24:36,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:36,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:24:36,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 05:24:36,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 05:24:36,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:37,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:37,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:37,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:37,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:37,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:37,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:37,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:37,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:37,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:37,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:37,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:37,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:37,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:37,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:37,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:37,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:37,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:37,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:37,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:37,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:37,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:37,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:37,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:37,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:37,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:37,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:37,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:37,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:37,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:37,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:37,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:37,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:37,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:37,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:37,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:37,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:37,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:37,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:37,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:37,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:37,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:37,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:37,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:37,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:37,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:37,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:37,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:37,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:37,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:37,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:37,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:37,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:37,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:37,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:37,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:37,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:37,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:37,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:37,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:37,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:37,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:37,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:37,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:37,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:37,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:37,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:37,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:37,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:37,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:37,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:37,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:24:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:37,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:37,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:37,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:37,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:37,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:37,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:37,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:37,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:37,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:37,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:37,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 05:24:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:37,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:37,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:37,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:37,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:37,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:37,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:37,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:37,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:37,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:37,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:37,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:24:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:37,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:37,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:37,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:37,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:37,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:37,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:37,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:37,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:37,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:37,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:37,097 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-13 05:24:37,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1346294272] [2020-10-13 05:24:37,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:37,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 05:24:37,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691988088] [2020-10-13 05:24:37,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 05:24:37,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:37,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 05:24:37,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-13 05:24:37,100 INFO L87 Difference]: Start difference. First operand 127 states and 166 transitions. Second operand 14 states. [2020-10-13 05:24:40,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:40,115 INFO L93 Difference]: Finished difference Result 459 states and 670 transitions. [2020-10-13 05:24:40,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-13 05:24:40,116 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 77 [2020-10-13 05:24:40,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:40,119 INFO L225 Difference]: With dead ends: 459 [2020-10-13 05:24:40,119 INFO L226 Difference]: Without dead ends: 457 [2020-10-13 05:24:40,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=381, Invalid=1689, Unknown=0, NotChecked=0, Total=2070 [2020-10-13 05:24:40,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-10-13 05:24:40,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 133. [2020-10-13 05:24:40,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-13 05:24:40,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 176 transitions. [2020-10-13 05:24:40,145 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 176 transitions. Word has length 77 [2020-10-13 05:24:40,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:40,146 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 176 transitions. [2020-10-13 05:24:40,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 05:24:40,146 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 176 transitions. [2020-10-13 05:24:40,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-13 05:24:40,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:40,147 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:40,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 05:24:40,147 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:40,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:40,147 INFO L82 PathProgramCache]: Analyzing trace with hash -17266686, now seen corresponding path program 4 times [2020-10-13 05:24:40,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:40,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585387750] [2020-10-13 05:24:40,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:40,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:40,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:40,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:41,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:41,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 05:24:41,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:24:41,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1192 [2020-10-13 05:24:41,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:41,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 05:24:41,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:24:41,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 05:24:41,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:41,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:41,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:41,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:41,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:41,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:41,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:41,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:41,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:41,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:41,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:41,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:41,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:41,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:41,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:41,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:41,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:41,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:41,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:41,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:41,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:41,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:41,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:41,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:41,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:41,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:41,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:41,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:41,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:41,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:41,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:41,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:41,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:41,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:41,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:41,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:41,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:41,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:41,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:41,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:41,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:41,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:41,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:41,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:41,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:41,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:41,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:41,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:41,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:41,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:41,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:41,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:41,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:41,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:41,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:41,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:41,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:41,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:41,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:41,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:41,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:41,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:41,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:41,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:41,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:41,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:41,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:41,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:41,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:41,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:41,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:41,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:41,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:41,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:41,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:41,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:41,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:24:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:41,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:41,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:41,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:41,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:41,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:41,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:41,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 05:24:41,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:41,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:24:41,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:41,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 05:24:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:41,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:41,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:41,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:41,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:41,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:41,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:41,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:41,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:24:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:41,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:41,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:41,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:41,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:41,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:41,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:41,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:41,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:41,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:41,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:41,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 05:24:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:41,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:41,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:41,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:41,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:41,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:41,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:41,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:41,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:41,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:41,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 7 proven. 43 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-13 05:24:41,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585387750] [2020-10-13 05:24:41,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:41,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 05:24:41,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851151971] [2020-10-13 05:24:41,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 05:24:41,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:41,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 05:24:41,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-10-13 05:24:41,704 INFO L87 Difference]: Start difference. First operand 133 states and 176 transitions. Second operand 18 states. [2020-10-13 05:24:45,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:45,446 INFO L93 Difference]: Finished difference Result 493 states and 727 transitions. [2020-10-13 05:24:45,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-10-13 05:24:45,447 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 85 [2020-10-13 05:24:45,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:45,450 INFO L225 Difference]: With dead ends: 493 [2020-10-13 05:24:45,450 INFO L226 Difference]: Without dead ends: 491 [2020-10-13 05:24:45,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1729 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=660, Invalid=5346, Unknown=0, NotChecked=0, Total=6006 [2020-10-13 05:24:45,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-10-13 05:24:45,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 175. [2020-10-13 05:24:45,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-10-13 05:24:45,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 234 transitions. [2020-10-13 05:24:45,498 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 234 transitions. Word has length 85 [2020-10-13 05:24:45,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:45,499 INFO L479 AbstractCegarLoop]: Abstraction has 175 states and 234 transitions. [2020-10-13 05:24:45,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 05:24:45,499 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 234 transitions. [2020-10-13 05:24:45,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-13 05:24:45,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:45,504 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:45,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 05:24:45,505 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:45,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:45,505 INFO L82 PathProgramCache]: Analyzing trace with hash -440913408, now seen corresponding path program 1 times [2020-10-13 05:24:45,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:45,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472372144] [2020-10-13 05:24:45,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:45,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:45,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:45,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 05:24:45,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:45,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-13 05:24:45,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:45,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 05:24:45,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:24:45,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 05:24:45,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:45,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:45,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:45,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:45,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:45,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:45,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:45,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:45,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:45,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:45,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:45,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:45,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:45,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:45,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:45,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:45,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:45,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:45,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:45,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:45,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:45,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:45,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:45,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:45,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:45,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:45,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:45,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:45,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:45,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:45,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:45,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:45,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:45,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:24:45,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:45,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:45,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:45,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:45,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:45,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:45,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:45,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:45,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:45,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:45,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:45,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:45,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:45,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:45,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:45,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:45,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:45,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:45,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:45,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:45,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:45,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:45,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:45,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:45,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:45,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:45,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:45,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:45,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:45,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:45,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:45,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:45,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:45,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:45,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:45,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:45,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:45,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:45,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:45,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:45,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:45,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:45,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:45,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:45,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:24:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:45,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:45,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:45,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:45,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:45,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:45,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:45,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:45,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:45,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:45,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:45,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 05:24:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:45,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:45,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:45,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:45,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:45,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:45,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:45,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:45,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:45,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:45,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:45,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:24:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:45,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:45,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:45,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:45,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:45,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:45,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:45,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:45,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 05:24:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:45,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:45,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:45,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:45,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:45,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:45,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:45,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:45,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:45,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:45,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:45,939 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 8 proven. 33 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-13 05:24:45,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472372144] [2020-10-13 05:24:45,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:45,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 05:24:45,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451884446] [2020-10-13 05:24:45,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:24:45,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:45,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:24:45,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:24:45,941 INFO L87 Difference]: Start difference. First operand 175 states and 234 transitions. Second operand 13 states. [2020-10-13 05:24:48,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:48,365 INFO L93 Difference]: Finished difference Result 666 states and 992 transitions. [2020-10-13 05:24:48,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-13 05:24:48,365 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2020-10-13 05:24:48,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:48,370 INFO L225 Difference]: With dead ends: 666 [2020-10-13 05:24:48,370 INFO L226 Difference]: Without dead ends: 664 [2020-10-13 05:24:48,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=295, Invalid=1597, Unknown=0, NotChecked=0, Total=1892 [2020-10-13 05:24:48,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2020-10-13 05:24:48,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 241. [2020-10-13 05:24:48,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-13 05:24:48,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 337 transitions. [2020-10-13 05:24:48,414 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 337 transitions. Word has length 85 [2020-10-13 05:24:48,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:48,414 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 337 transitions. [2020-10-13 05:24:48,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:24:48,415 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 337 transitions. [2020-10-13 05:24:48,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-13 05:24:48,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:48,416 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:48,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 05:24:48,417 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:48,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:48,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1668913152, now seen corresponding path program 2 times [2020-10-13 05:24:48,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:48,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [405960254] [2020-10-13 05:24:48,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:48,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:48,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:48,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:48,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 05:24:49,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:24:49,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 566 [2020-10-13 05:24:49,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:49,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 05:24:49,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:24:49,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 05:24:49,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:49,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:49,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:49,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:49,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:49,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:49,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:49,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:49,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:49,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:49,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:49,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:49,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:49,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:49,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:49,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:49,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:49,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:49,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:49,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:49,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:49,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:49,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:49,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:49,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:49,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:49,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:49,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:49,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:49,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:49,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:49,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:49,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:49,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:49,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:49,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:49,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:49,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:49,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:49,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:49,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:49,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:49,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:49,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:49,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:49,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:49,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:49,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:49,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:49,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:49,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:49,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:49,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:49,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:49,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:49,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:49,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:49,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:49,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:49,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:49,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:49,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:49,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:49,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:49,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:49,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:49,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:49,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:49,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:49,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:49,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:49,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:49,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 05:24:49,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:49,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:49,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:49,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:24:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:49,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:49,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:49,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:49,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:49,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:49,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:49,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:49,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:49,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:49,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:49,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 05:24:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:49,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:49,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:49,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:49,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:49,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:49,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:49,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:49,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:49,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:49,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:49,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:24:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:49,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:49,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:49,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:49,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:49,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:49,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:49,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 05:24:49,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:49,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:24:49,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:49,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 05:24:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:49,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:49,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:49,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:49,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:49,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:49,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:49,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:49,316 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 13 proven. 37 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-13 05:24:49,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [405960254] [2020-10-13 05:24:49,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:49,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 05:24:49,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93732646] [2020-10-13 05:24:49,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 05:24:49,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:49,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 05:24:49,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-10-13 05:24:49,318 INFO L87 Difference]: Start difference. First operand 241 states and 337 transitions. Second operand 18 states. [2020-10-13 05:24:51,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:51,771 INFO L93 Difference]: Finished difference Result 593 states and 871 transitions. [2020-10-13 05:24:51,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-13 05:24:51,772 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 85 [2020-10-13 05:24:51,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:51,775 INFO L225 Difference]: With dead ends: 593 [2020-10-13 05:24:51,776 INFO L226 Difference]: Without dead ends: 591 [2020-10-13 05:24:51,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=250, Invalid=2102, Unknown=0, NotChecked=0, Total=2352 [2020-10-13 05:24:51,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2020-10-13 05:24:51,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 241. [2020-10-13 05:24:51,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-13 05:24:51,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 337 transitions. [2020-10-13 05:24:51,832 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 337 transitions. Word has length 85 [2020-10-13 05:24:51,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:51,833 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 337 transitions. [2020-10-13 05:24:51,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 05:24:51,833 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 337 transitions. [2020-10-13 05:24:51,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-13 05:24:51,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:51,835 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:51,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 05:24:51,835 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:51,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:51,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1225012478, now seen corresponding path program 1 times [2020-10-13 05:24:51,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:51,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108834162] [2020-10-13 05:24:51,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:51,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:52,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:52,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 05:24:52,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:52,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-13 05:24:52,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:52,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:24:52,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 05:24:52,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 05:24:52,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:52,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:52,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:52,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:52,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:52,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:52,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:52,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:52,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:52,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:52,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:52,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:52,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:52,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:52,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:52,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:52,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:52,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:52,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:52,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:52,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:52,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:52,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:52,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:52,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:52,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:52,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:52,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:52,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:52,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:52,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:52,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:52,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:52,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:52,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:52,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:52,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:52,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:52,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:52,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:52,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:52,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:52,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:52,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:52,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:52,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:52,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:52,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:52,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:52,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:52,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:52,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:52,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:52,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:52,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:52,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:52,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:52,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:52,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:52,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:52,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:52,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:52,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:52,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:52,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:52,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:52,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:52,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:52,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:52,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:52,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:52,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:52,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:52,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:52,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:52,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:24:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:52,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:52,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:52,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:52,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:52,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:52,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:52,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:52,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:52,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:52,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:52,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 05:24:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:52,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:52,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:52,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:52,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:52,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:52,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:52,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:52,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:52,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:52,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:52,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:24:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:52,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:52,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:52,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:52,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:52,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:52,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:52,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:52,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:52,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 05:24:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:52,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:52,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:52,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:52,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:52,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:52,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:52,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:52,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:52,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:52,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:52,329 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 8 proven. 33 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-13 05:24:52,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108834162] [2020-10-13 05:24:52,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:52,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 05:24:52,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174919999] [2020-10-13 05:24:52,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 05:24:52,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:52,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 05:24:52,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-13 05:24:52,331 INFO L87 Difference]: Start difference. First operand 241 states and 337 transitions. Second operand 14 states. [2020-10-13 05:24:53,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:53,666 INFO L93 Difference]: Finished difference Result 557 states and 838 transitions. [2020-10-13 05:24:53,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 05:24:53,667 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 85 [2020-10-13 05:24:53,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:53,670 INFO L225 Difference]: With dead ends: 557 [2020-10-13 05:24:53,670 INFO L226 Difference]: Without dead ends: 555 [2020-10-13 05:24:53,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=144, Invalid=726, Unknown=0, NotChecked=0, Total=870 [2020-10-13 05:24:53,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2020-10-13 05:24:53,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 145. [2020-10-13 05:24:53,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-13 05:24:53,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 189 transitions. [2020-10-13 05:24:53,701 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 189 transitions. Word has length 85 [2020-10-13 05:24:53,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:53,702 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 189 transitions. [2020-10-13 05:24:53,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 05:24:53,702 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 189 transitions. [2020-10-13 05:24:53,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-13 05:24:53,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:53,703 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:53,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 05:24:53,704 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:53,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:53,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1324463839, now seen corresponding path program 5 times [2020-10-13 05:24:53,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:53,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702472783] [2020-10-13 05:24:53,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:53,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:53,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:54,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:54,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 05:24:54,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:24:54,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 526 [2020-10-13 05:24:54,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:54,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 05:24:54,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 05:24:54,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 05:24:54,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:54,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:24:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:54,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:54,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:54,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:54,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:54,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:54,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:54,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:24:54,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:54,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:24:54,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:54,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:24:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:54,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:54,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:54,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:54,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:54,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:24:54,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:54,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 05:24:54,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:54,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:24:54,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:54,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:24:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:54,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:54,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:54,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:54,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:54,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:54,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:54,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:54,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:54,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:54,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:54,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:24:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:54,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:54,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:54,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:54,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:54,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:54,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:54,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:54,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:54,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:54,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:54,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:24:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:54,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:54,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:54,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:54,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:54,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:54,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:54,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:54,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:54,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:54,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:54,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:24:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:54,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:54,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:54,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:54,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:54,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:54,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:54,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:54,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:54,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:54,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:54,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:24:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:54,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:54,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:54,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:24:54,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:54,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:24:54,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:54,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:54,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:54,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:24:54,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:54,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:24:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:54,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:54,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:54,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:54,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:54,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:54,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:54,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:54,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:54,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:54,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:54,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 05:24:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:54,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:54,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:54,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:54,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:54,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 05:24:54,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:54,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:54,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:54,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:54,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:54,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:24:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:54,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:54,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:54,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:54,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:54,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:24:54,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:54,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:54,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:54,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:54,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:54,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 05:24:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:54,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:54,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:54,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:54,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:54,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:54,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:54,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:54,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:54,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:54,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:54,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 05:24:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:54,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:54,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:54,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:24:54,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:24:54,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:24:54,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:54,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:24:54,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:24:54,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:24:54,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:24:54,573 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 60 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 05:24:54,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702472783] [2020-10-13 05:24:54,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:24:54,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-13 05:24:54,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217275139] [2020-10-13 05:24:54,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 05:24:54,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:24:54,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 05:24:54,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-10-13 05:24:54,579 INFO L87 Difference]: Start difference. First operand 145 states and 189 transitions. Second operand 15 states. [2020-10-13 05:24:55,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:24:55,678 INFO L93 Difference]: Finished difference Result 243 states and 315 transitions. [2020-10-13 05:24:55,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 05:24:55,678 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 93 [2020-10-13 05:24:55,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:24:55,680 INFO L225 Difference]: With dead ends: 243 [2020-10-13 05:24:55,680 INFO L226 Difference]: Without dead ends: 191 [2020-10-13 05:24:55,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=157, Invalid=655, Unknown=0, NotChecked=0, Total=812 [2020-10-13 05:24:55,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-10-13 05:24:55,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 155. [2020-10-13 05:24:55,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-13 05:24:55,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 203 transitions. [2020-10-13 05:24:55,713 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 203 transitions. Word has length 93 [2020-10-13 05:24:55,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:24:55,713 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 203 transitions. [2020-10-13 05:24:55,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 05:24:55,713 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 203 transitions. [2020-10-13 05:24:55,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 05:24:55,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:24:55,715 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:24:55,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 05:24:55,715 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:24:55,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:24:55,715 INFO L82 PathProgramCache]: Analyzing trace with hash -758549997, now seen corresponding path program 1 times [2020-10-13 05:24:55,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:24:55,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857107048] [2020-10-13 05:24:55,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:24:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:24:55,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:55,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:56,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:56,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:24:59,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:24:59,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 05:24:59,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 05:24:59,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3823 [2020-10-13 05:24:59,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:24:59,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-13 05:24:59,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:24:59,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 05:24:59,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:00,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:25:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:00,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:00,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:00,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:00,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:00,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:00,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:00,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:25:00,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:00,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:25:00,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:00,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:25:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:00,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:00,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:00,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:00,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:00,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:00,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:00,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:25:00,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:00,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:25:00,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:00,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:25:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:00,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:00,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:00,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:00,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:00,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:00,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:00,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:00,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:00,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:00,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:00,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:25:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:00,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:00,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:00,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:00,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:00,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:00,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:00,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:00,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:25:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:00,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:00,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:00,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:00,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:00,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:00,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:00,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:00,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:00,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:00,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:00,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:25:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:00,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:00,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:00,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:00,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:00,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 05:25:00,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:00,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:00,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:00,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:00,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:25:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:00,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:00,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:00,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:00,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:00,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:00,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:00,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:00,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:00,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:00,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:00,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 05:25:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:00,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:00,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:00,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:00,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:00,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:00,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:00,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:00,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:00,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:00,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 05:25:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:00,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:00,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:00,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:00,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:00,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:25:00,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:00,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:00,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:00,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:00,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:00,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 05:25:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:00,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:00,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:00,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:00,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:00,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:25:00,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:00,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:00,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:25:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:00,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:00,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:00,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:00,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:00,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:25:00,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:00,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:00,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:00,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:00,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:00,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 05:25:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:00,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:00,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:00,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:00,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:00,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:00,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:00,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:00,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 05:25:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:00,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:00,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:00,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:00,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:00,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 05:25:00,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:00,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 05:25:00,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:00,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:25:00,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:00,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 05:25:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:00,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:00,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:00,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:00,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:00,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:00,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:00,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:00,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:00,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:00,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:00,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 05:25:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:00,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:00,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:00,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:00,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:00,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 05:25:00,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:00,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:00,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:00,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:00,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:00,284 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 5 proven. 44 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-13 05:25:00,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857107048] [2020-10-13 05:25:00,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:25:00,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-13 05:25:00,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288200686] [2020-10-13 05:25:00,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-13 05:25:00,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:25:00,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-13 05:25:00,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2020-10-13 05:25:00,290 INFO L87 Difference]: Start difference. First operand 155 states and 203 transitions. Second operand 20 states. [2020-10-13 05:25:07,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:25:07,846 INFO L93 Difference]: Finished difference Result 676 states and 1002 transitions. [2020-10-13 05:25:07,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2020-10-13 05:25:07,851 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 109 [2020-10-13 05:25:07,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:25:07,855 INFO L225 Difference]: With dead ends: 676 [2020-10-13 05:25:07,855 INFO L226 Difference]: Without dead ends: 674 [2020-10-13 05:25:07,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3085 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1242, Invalid=7878, Unknown=0, NotChecked=0, Total=9120 [2020-10-13 05:25:07,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2020-10-13 05:25:07,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 212. [2020-10-13 05:25:07,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-10-13 05:25:07,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 289 transitions. [2020-10-13 05:25:07,906 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 289 transitions. Word has length 109 [2020-10-13 05:25:07,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:25:07,906 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 289 transitions. [2020-10-13 05:25:07,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-13 05:25:07,907 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 289 transitions. [2020-10-13 05:25:07,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 05:25:07,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:25:07,908 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:25:07,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 05:25:07,909 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:25:07,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:25:07,909 INFO L82 PathProgramCache]: Analyzing trace with hash -2019467247, now seen corresponding path program 1 times [2020-10-13 05:25:07,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:25:07,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459677388] [2020-10-13 05:25:07,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:25:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:07,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:08,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:08,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 05:25:09,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:25:09,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1104 [2020-10-13 05:25:09,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 05:25:09,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:25:09,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 05:25:09,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:09,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:25:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:09,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:09,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:09,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:09,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:25:09,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:09,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:25:09,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:09,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:25:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:09,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:09,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:09,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:25:09,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:25:09,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:09,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:25:09,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:09,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:25:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:09,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:09,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:09,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 05:25:09,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:09,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:09,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:09,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:09,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:25:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:09,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:09,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:09,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:09,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:09,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:09,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:09,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:09,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:25:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:09,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:09,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:09,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:09,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:09,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:09,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:09,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:09,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:25:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:09,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:09,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:09,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:09,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:09,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:09,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:09,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:09,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:25:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:09,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:09,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:09,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:09,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:09,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:09,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:09,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:09,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 05:25:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:09,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:09,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:09,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:09,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:09,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:09,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:09,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:09,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 05:25:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:09,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:09,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:09,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:09,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:09,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:09,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:09,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:09,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 05:25:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:09,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:09,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:09,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:09,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:09,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:09,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:09,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:09,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:25:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:09,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:09,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:09,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:09,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:09,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:09,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:09,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:09,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 05:25:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:09,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:09,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:09,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:09,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:09,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:09,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:09,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:09,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 05:25:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:09,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:09,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:09,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:09,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:09,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:09,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:09,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:09,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 05:25:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:09,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:09,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:09,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:09,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:09,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:09,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:09,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:09,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 05:25:09,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:09,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:09,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:09,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:09,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:09,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:09,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:09,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:09,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:09,392 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 6 proven. 37 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-10-13 05:25:09,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [459677388] [2020-10-13 05:25:09,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:25:09,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-13 05:25:09,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737011619] [2020-10-13 05:25:09,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 05:25:09,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:25:09,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 05:25:09,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-10-13 05:25:09,395 INFO L87 Difference]: Start difference. First operand 212 states and 289 transitions. Second operand 15 states. [2020-10-13 05:25:12,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:25:12,091 INFO L93 Difference]: Finished difference Result 744 states and 1106 transitions. [2020-10-13 05:25:12,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-13 05:25:12,092 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-13 05:25:12,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:25:12,096 INFO L225 Difference]: With dead ends: 744 [2020-10-13 05:25:12,097 INFO L226 Difference]: Without dead ends: 742 [2020-10-13 05:25:12,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=289, Invalid=1603, Unknown=0, NotChecked=0, Total=1892 [2020-10-13 05:25:12,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2020-10-13 05:25:12,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 241. [2020-10-13 05:25:12,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-13 05:25:12,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 337 transitions. [2020-10-13 05:25:12,154 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 337 transitions. Word has length 109 [2020-10-13 05:25:12,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:25:12,154 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 337 transitions. [2020-10-13 05:25:12,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 05:25:12,155 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 337 transitions. [2020-10-13 05:25:12,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 05:25:12,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:25:12,156 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:25:12,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 05:25:12,157 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:25:12,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:25:12,157 INFO L82 PathProgramCache]: Analyzing trace with hash 119466515, now seen corresponding path program 2 times [2020-10-13 05:25:12,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:25:12,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248288358] [2020-10-13 05:25:12,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:25:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:12,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:12,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:12,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 05:25:13,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:25:13,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1102 [2020-10-13 05:25:13,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 05:25:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:25:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 05:25:13,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:25:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:13,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:13,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:13,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:13,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:25:13,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:13,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:25:13,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:25:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:13,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:13,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:13,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:13,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:25:13,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:13,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:25:13,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:25:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:13,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:13,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:13,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:13,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:13,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:13,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:13,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:25:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:13,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:13,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:13,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:13,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:13,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:13,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:13,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:25:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:13,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:13,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:13,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:13,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:13,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:13,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:13,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:25:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:13,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:13,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:13,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:13,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:13,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:25:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:13,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:13,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:13,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:13,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:13,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:13,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:13,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 05:25:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:13,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:13,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:13,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:13,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:13,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:13,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:13,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 05:25:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:13,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:13,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:13,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:13,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:13,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:13,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:13,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 05:25:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:13,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:13,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:13,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:13,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:13,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:13,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:13,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:25:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:13,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:13,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:13,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:13,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:13,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:13,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:13,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 05:25:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:13,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:13,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:13,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:13,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:13,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:13,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:13,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 05:25:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:13,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:13,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:13,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:13,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 05:25:13,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:13,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:25:13,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 05:25:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:13,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:13,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:13,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:13,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:13,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:13,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 05:25:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:13,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:13,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:13,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:13,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:13,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:13,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:13,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:13,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:13,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:13,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:13,790 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 5 proven. 44 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-13 05:25:13,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248288358] [2020-10-13 05:25:13,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:25:13,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-13 05:25:13,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799369521] [2020-10-13 05:25:13,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-13 05:25:13,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:25:13,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-13 05:25:13,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2020-10-13 05:25:13,791 INFO L87 Difference]: Start difference. First operand 241 states and 337 transitions. Second operand 20 states. [2020-10-13 05:25:20,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:25:20,380 INFO L93 Difference]: Finished difference Result 861 states and 1287 transitions. [2020-10-13 05:25:20,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2020-10-13 05:25:20,381 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 109 [2020-10-13 05:25:20,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:25:20,385 INFO L225 Difference]: With dead ends: 861 [2020-10-13 05:25:20,385 INFO L226 Difference]: Without dead ends: 859 [2020-10-13 05:25:20,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 32 SyntacticMatches, 4 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2950 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1093, Invalid=7463, Unknown=0, NotChecked=0, Total=8556 [2020-10-13 05:25:20,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2020-10-13 05:25:20,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 255. [2020-10-13 05:25:20,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-10-13 05:25:20,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 360 transitions. [2020-10-13 05:25:20,451 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 360 transitions. Word has length 109 [2020-10-13 05:25:20,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:25:20,452 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 360 transitions. [2020-10-13 05:25:20,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-13 05:25:20,452 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 360 transitions. [2020-10-13 05:25:20,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 05:25:20,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:25:20,454 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:25:20,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 05:25:20,454 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:25:20,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:25:20,454 INFO L82 PathProgramCache]: Analyzing trace with hash 890200081, now seen corresponding path program 2 times [2020-10-13 05:25:20,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:25:20,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063407059] [2020-10-13 05:25:20,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:25:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:20,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:20,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 05:25:21,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:25:21,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-10-13 05:25:21,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 05:25:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:25:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 05:25:21,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:25:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:21,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:21,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:21,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:21,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:25:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:21,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:25:21,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:25:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:21,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:21,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:21,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:21,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:25:21,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:21,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:25:21,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:25:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:21,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:21,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:21,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:21,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:21,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:25:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:21,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:21,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:21,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:21,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:21,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:21,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:21,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:25:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:21,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:21,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:21,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:21,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:21,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:21,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:21,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:25:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:21,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:21,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:21,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:21,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:21,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:21,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:21,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:25:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:21,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:21,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:21,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:21,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:21,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 05:25:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:21,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:21,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:21,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:21,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:21,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:21,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 05:25:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:21,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:21,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:21,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:21,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:21,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:21,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:21,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 05:25:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:21,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:21,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:21,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:21,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:21,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:21,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:25:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:21,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:21,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:21,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:21,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:21,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 05:25:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:21,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:21,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:21,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:21,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:21,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 05:25:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:21,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:21,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:21,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:21,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:21,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:21,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:21,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 05:25:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:21,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:21,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:21,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:21,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:21,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 05:25:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:21,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:21,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:21,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:21,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:21,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:21,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:21,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 05:25:21,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:21,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:25:21,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:21,959 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 11 proven. 38 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-13 05:25:21,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2063407059] [2020-10-13 05:25:21,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:25:21,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-13 05:25:21,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153529936] [2020-10-13 05:25:21,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-13 05:25:21,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:25:21,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-13 05:25:21,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-10-13 05:25:21,961 INFO L87 Difference]: Start difference. First operand 255 states and 360 transitions. Second operand 20 states. [2020-10-13 05:25:26,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:25:26,403 INFO L93 Difference]: Finished difference Result 781 states and 1177 transitions. [2020-10-13 05:25:26,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-13 05:25:26,406 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 109 [2020-10-13 05:25:26,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:25:26,410 INFO L225 Difference]: With dead ends: 781 [2020-10-13 05:25:26,410 INFO L226 Difference]: Without dead ends: 779 [2020-10-13 05:25:26,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=511, Invalid=3149, Unknown=0, NotChecked=0, Total=3660 [2020-10-13 05:25:26,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2020-10-13 05:25:26,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 266. [2020-10-13 05:25:26,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-13 05:25:26,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 377 transitions. [2020-10-13 05:25:26,478 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 377 transitions. Word has length 109 [2020-10-13 05:25:26,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:25:26,479 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 377 transitions. [2020-10-13 05:25:26,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-13 05:25:26,479 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 377 transitions. [2020-10-13 05:25:26,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 05:25:26,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:25:26,481 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:25:26,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 05:25:26,482 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:25:26,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:25:26,482 INFO L82 PathProgramCache]: Analyzing trace with hash 863134479, now seen corresponding path program 1 times [2020-10-13 05:25:26,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:25:26,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529932361] [2020-10-13 05:25:26,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:25:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:26,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:26,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:26,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 05:25:26,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:26,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 482 [2020-10-13 05:25:26,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:26,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 05:25:26,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 05:25:26,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-13 05:25:26,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:25:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:27,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:27,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:27,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:27,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:27,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:27,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:27,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:25:27,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:27,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:25:27,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:25:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:27,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:27,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:27,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:27,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:27,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:27,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:27,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:27,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:27,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:27,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:25:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:27,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:27,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:27,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:27,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:27,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:27,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:27,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:27,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:27,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:27,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:25:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:27,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:27,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:27,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:27,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:27,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:25:27,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:27,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:27,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:27,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:27,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:25:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:27,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:27,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:27,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:27,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:27,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:27,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:27,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:27,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:27,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:27,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:25:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:27,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:27,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:27,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:27,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:27,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:27,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:27,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:27,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:27,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:27,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:25:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:27,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:27,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:27,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:27,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:27,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:27,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:27,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:27,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:27,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:27,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 05:25:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:27,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:27,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:27,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:27,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:27,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:27,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:27,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:27,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:27,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:27,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 05:25:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:27,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:27,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:27,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:27,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:27,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:27,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:27,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:27,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:27,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:27,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 05:25:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:27,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:27,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:27,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:27,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:27,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:27,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:27,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:27,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:27,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:27,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:25:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:27,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:27,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:27,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:27,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:27,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:27,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:27,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:27,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:27,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:27,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 05:25:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:27,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:27,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:27,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:27,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:27,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:27,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:27,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:27,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:27,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:27,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 05:25:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:27,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:27,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:27,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:27,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:27,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:27,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:27,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:27,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:27,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:27,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 05:25:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:27,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:27,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:27,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:27,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:27,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:27,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:27,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:27,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:27,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:27,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 05:25:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:27,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:27,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:27,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:27,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:27,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:27,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:27,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:27,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:27,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:27,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:27,292 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 6 proven. 35 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-13 05:25:27,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529932361] [2020-10-13 05:25:27,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:25:27,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-13 05:25:27,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469575869] [2020-10-13 05:25:27,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 05:25:27,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:25:27,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 05:25:27,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-13 05:25:27,294 INFO L87 Difference]: Start difference. First operand 266 states and 377 transitions. Second operand 15 states. [2020-10-13 05:25:28,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:25:28,693 INFO L93 Difference]: Finished difference Result 551 states and 835 transitions. [2020-10-13 05:25:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 05:25:28,693 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-13 05:25:28,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:25:28,696 INFO L225 Difference]: With dead ends: 551 [2020-10-13 05:25:28,696 INFO L226 Difference]: Without dead ends: 549 [2020-10-13 05:25:28,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=704, Unknown=0, NotChecked=0, Total=870 [2020-10-13 05:25:28,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-10-13 05:25:28,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 101. [2020-10-13 05:25:28,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-13 05:25:28,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 121 transitions. [2020-10-13 05:25:28,731 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 121 transitions. Word has length 109 [2020-10-13 05:25:28,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:25:28,733 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 121 transitions. [2020-10-13 05:25:28,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 05:25:28,733 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 121 transitions. [2020-10-13 05:25:28,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-13 05:25:28,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:25:28,734 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:25:28,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 05:25:28,735 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:25:28,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:25:28,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1649194571, now seen corresponding path program 6 times [2020-10-13 05:25:28,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:25:28,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201195313] [2020-10-13 05:25:28,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:25:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:28,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:28,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:29,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:29,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:33,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:33,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-13 05:25:33,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 05:25:33,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-13 05:25:33,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:33,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 05:25:33,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:25:33,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 05:25:33,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:34,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:25:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:34,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:34,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:25:34,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:25:34,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:25:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:34,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:34,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:25:34,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:25:34,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:25:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:34,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:34,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:34,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:34,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:25:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:34,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:34,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:34,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:34,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:25:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:34,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 05:25:34,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:34,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:34,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:25:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:34,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:34,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:34,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:25:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:34,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:34,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:34,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:34,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 05:25:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:34,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:34,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:34,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:34,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 05:25:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:34,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:34,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:34,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:34,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 05:25:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:34,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:34,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:34,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:34,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:25:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:34,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:34,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:34,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:34,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 05:25:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:34,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:25:34,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:34,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 05:25:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:34,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 05:25:34,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 05:25:34,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:25:34,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 05:25:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:34,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:34,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:34,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:34,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 05:25:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:34,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:34,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:34,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:34,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-13 05:25:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:34,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:34,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:34,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:34,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 05:25:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:34,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:34,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:34,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:34,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:34,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:34,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:34,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:34,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:34,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:34,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:25:34,506 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 9 proven. 82 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-10-13 05:25:34,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201195313] [2020-10-13 05:25:34,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:25:34,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-13 05:25:34,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237785357] [2020-10-13 05:25:34,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-13 05:25:34,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:25:34,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-13 05:25:34,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2020-10-13 05:25:34,509 INFO L87 Difference]: Start difference. First operand 101 states and 121 transitions. Second operand 20 states. [2020-10-13 05:25:49,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:25:49,734 INFO L93 Difference]: Finished difference Result 1471 states and 2283 transitions. [2020-10-13 05:25:49,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2020-10-13 05:25:49,735 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 125 [2020-10-13 05:25:49,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:25:49,742 INFO L225 Difference]: With dead ends: 1471 [2020-10-13 05:25:49,742 INFO L226 Difference]: Without dead ends: 1469 [2020-10-13 05:25:49,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 39 SyntacticMatches, 4 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12134 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=2350, Invalid=28450, Unknown=0, NotChecked=0, Total=30800 [2020-10-13 05:25:49,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2020-10-13 05:25:49,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 157. [2020-10-13 05:25:49,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-13 05:25:49,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 202 transitions. [2020-10-13 05:25:49,824 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 202 transitions. Word has length 125 [2020-10-13 05:25:49,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:25:49,825 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 202 transitions. [2020-10-13 05:25:49,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-13 05:25:49,825 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 202 transitions. [2020-10-13 05:25:49,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-13 05:25:49,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:25:49,827 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:25:49,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 05:25:49,828 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:25:49,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:25:49,828 INFO L82 PathProgramCache]: Analyzing trace with hash -734730167, now seen corresponding path program 1 times [2020-10-13 05:25:49,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:25:49,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458357626] [2020-10-13 05:25:49,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:25:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:49,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-13 05:25:50,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-10-13 05:25:50,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 05:25:50,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:25:50,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 05:25:50,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:25:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:50,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:50,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:25:50,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:25:50,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:25:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:50,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:50,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:25:50,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:25:50,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:25:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:50,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:50,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:50,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:50,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:25:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:50,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:50,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:50,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:50,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:25:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:50,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:50,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:50,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:50,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:25:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:50,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:50,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:50,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:50,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:25:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:50,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:50,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:50,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:50,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 05:25:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:50,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:50,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:50,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 05:25:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:50,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:50,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:50,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:50,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 05:25:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:50,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:50,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:50,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:50,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:25:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:50,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:25:50,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:50,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:50,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 05:25:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:25:50,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:50,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:25:50,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 05:25:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:50,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:50,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:50,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:50,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 05:25:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:50,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:50,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:50,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:50,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 05:25:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:50,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:50,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:50,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:50,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-13 05:25:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:50,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:50,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:50,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 05:25:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:25:50,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:25:50,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:25:50,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:25:50,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:25:50,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:25:50,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:25:50,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:25:50,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:25:50,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:25:50,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:25:50,634 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 10 proven. 69 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2020-10-13 05:25:50,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458357626] [2020-10-13 05:25:50,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:25:50,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 05:25:50,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352522376] [2020-10-13 05:25:50,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 05:25:50,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:25:50,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 05:25:50,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-13 05:25:50,636 INFO L87 Difference]: Start difference. First operand 157 states and 202 transitions. Second operand 16 states. [2020-10-13 05:26:03,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:26:03,996 INFO L93 Difference]: Finished difference Result 2140 states and 3340 transitions. [2020-10-13 05:26:03,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2020-10-13 05:26:03,997 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 125 [2020-10-13 05:26:03,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:26:04,009 INFO L225 Difference]: With dead ends: 2140 [2020-10-13 05:26:04,009 INFO L226 Difference]: Without dead ends: 2138 [2020-10-13 05:26:04,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8903 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=2364, Invalid=19392, Unknown=0, NotChecked=0, Total=21756 [2020-10-13 05:26:04,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2020-10-13 05:26:04,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 201. [2020-10-13 05:26:04,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-13 05:26:04,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 262 transitions. [2020-10-13 05:26:04,116 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 262 transitions. Word has length 125 [2020-10-13 05:26:04,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:26:04,117 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 262 transitions. [2020-10-13 05:26:04,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 05:26:04,117 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 262 transitions. [2020-10-13 05:26:04,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-13 05:26:04,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:26:04,118 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:26:04,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 05:26:04,119 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:26:04,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:26:04,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1530753097, now seen corresponding path program 2 times [2020-10-13 05:26:04,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:26:04,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399243563] [2020-10-13 05:26:04,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:26:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:04,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:04,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:04,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-13 05:26:05,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:26:05,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 977 [2020-10-13 05:26:05,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 05:26:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:26:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 05:26:05,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:26:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:05,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:05,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:26:05,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:26:05,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:26:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:05,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 05:26:05,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:26:05,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:26:05,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:26:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:05,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:05,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:05,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:26:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:05,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:05,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:05,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:05,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:26:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:05,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:05,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:05,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:05,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:26:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:05,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:05,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:05,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:26:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:05,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:05,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:05,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:05,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 05:26:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:05,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:26:05,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:05,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:05,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 05:26:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:05,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:05,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:05,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:05,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 05:26:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:05,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:05,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:05,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:26:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:05,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:05,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:05,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 05:26:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:05,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:05,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:05,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:05,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 05:26:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:05,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:05,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:05,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:05,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 05:26:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:05,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:05,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:05,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:05,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 05:26:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:05,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:05,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:05,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:05,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-13 05:26:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:05,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:05,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:05,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 05:26:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:05,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:05,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:05,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:05,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:05,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:26:05,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 05:26:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:26:05,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:05,683 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 21 proven. 70 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-10-13 05:26:05,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399243563] [2020-10-13 05:26:05,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:26:05,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-13 05:26:05,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668893105] [2020-10-13 05:26:05,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-13 05:26:05,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:26:05,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-13 05:26:05,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2020-10-13 05:26:05,685 INFO L87 Difference]: Start difference. First operand 201 states and 262 transitions. Second operand 21 states. [2020-10-13 05:26:09,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:26:09,792 INFO L93 Difference]: Finished difference Result 551 states and 792 transitions. [2020-10-13 05:26:09,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-13 05:26:09,793 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 125 [2020-10-13 05:26:09,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:26:09,796 INFO L225 Difference]: With dead ends: 551 [2020-10-13 05:26:09,796 INFO L226 Difference]: Without dead ends: 549 [2020-10-13 05:26:09,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=294, Invalid=2676, Unknown=0, NotChecked=0, Total=2970 [2020-10-13 05:26:09,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-10-13 05:26:09,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 220. [2020-10-13 05:26:09,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-13 05:26:09,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 292 transitions. [2020-10-13 05:26:09,902 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 292 transitions. Word has length 125 [2020-10-13 05:26:09,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:26:09,903 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 292 transitions. [2020-10-13 05:26:09,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-13 05:26:09,903 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 292 transitions. [2020-10-13 05:26:09,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-13 05:26:09,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:26:09,905 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:26:09,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 05:26:09,906 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:26:09,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:26:09,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1706376121, now seen corresponding path program 1 times [2020-10-13 05:26:09,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:26:09,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706953802] [2020-10-13 05:26:09,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:26:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:09,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:10,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:10,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:10,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-13 05:26:10,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:26:10,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 871 [2020-10-13 05:26:10,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-13 05:26:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:26:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 05:26:10,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:26:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:11,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:11,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:26:11,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:26:11,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:26:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:11,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 05:26:11,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:26:11,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:26:11,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:26:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:11,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:11,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:11,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:26:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:11,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:11,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:11,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:11,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:26:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:11,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:11,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:11,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:26:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:11,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:11,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:11,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:26:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:11,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:11,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:11,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:11,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 05:26:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:11,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:11,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:11,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 05:26:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:11,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:11,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:11,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:11,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 05:26:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:11,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:11,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:11,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:11,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:26:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:11,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:11,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:11,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:11,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 05:26:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:11,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:11,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:11,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:11,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 05:26:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:11,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:11,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:11,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 05:26:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:11,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:11,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:11,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:11,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 05:26:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:11,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:26:11,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 05:26:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:26:11,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-13 05:26:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:11,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:26:11,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:11,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:11,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 05:26:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:11,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:11,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:11,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:11,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:11,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:11,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:11,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:11,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:11,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:11,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:11,302 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 15 proven. 76 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-10-13 05:26:11,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706953802] [2020-10-13 05:26:11,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:26:11,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-13 05:26:11,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241789614] [2020-10-13 05:26:11,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-13 05:26:11,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:26:11,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-13 05:26:11,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2020-10-13 05:26:11,304 INFO L87 Difference]: Start difference. First operand 220 states and 292 transitions. Second operand 20 states. [2020-10-13 05:26:17,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:26:17,810 INFO L93 Difference]: Finished difference Result 895 states and 1334 transitions. [2020-10-13 05:26:17,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-10-13 05:26:17,811 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 125 [2020-10-13 05:26:17,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:26:17,815 INFO L225 Difference]: With dead ends: 895 [2020-10-13 05:26:17,815 INFO L226 Difference]: Without dead ends: 893 [2020-10-13 05:26:17,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1260 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=411, Invalid=4419, Unknown=0, NotChecked=0, Total=4830 [2020-10-13 05:26:17,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-10-13 05:26:17,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 220. [2020-10-13 05:26:17,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-13 05:26:17,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 292 transitions. [2020-10-13 05:26:17,918 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 292 transitions. Word has length 125 [2020-10-13 05:26:17,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:26:17,919 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 292 transitions. [2020-10-13 05:26:17,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-13 05:26:17,919 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 292 transitions. [2020-10-13 05:26:17,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-13 05:26:17,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:26:17,921 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:26:17,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 05:26:17,921 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:26:17,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:26:17,922 INFO L82 PathProgramCache]: Analyzing trace with hash -822867131, now seen corresponding path program 1 times [2020-10-13 05:26:17,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:26:17,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1453235708] [2020-10-13 05:26:17,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:26:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:17,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-13 05:26:18,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-13 05:26:18,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 05:26:18,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 05:26:18,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-13 05:26:18,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:26:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:18,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:26:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:26:18,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:26:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:18,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:18,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:26:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:18,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:18,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:26:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:18,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:18,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:26:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:18,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:18,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:26:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:18,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:18,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:26:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:18,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:18,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 05:26:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:18,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:18,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 05:26:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:18,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:26:18,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:18,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 05:26:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:18,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:18,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:26:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:18,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:18,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 05:26:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:18,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:18,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 05:26:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:18,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:18,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 05:26:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:18,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:18,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 05:26:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:18,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:18,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-13 05:26:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:18,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:18,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 05:26:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:18,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:18,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:18,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:18,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:18,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:18,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:18,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:18,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:18,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:18,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:18,616 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 10 proven. 69 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2020-10-13 05:26:18,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1453235708] [2020-10-13 05:26:18,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:26:18,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-13 05:26:18,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43478368] [2020-10-13 05:26:18,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-13 05:26:18,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:26:18,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-13 05:26:18,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2020-10-13 05:26:18,618 INFO L87 Difference]: Start difference. First operand 220 states and 292 transitions. Second operand 17 states. [2020-10-13 05:26:21,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:26:21,231 INFO L93 Difference]: Finished difference Result 441 states and 641 transitions. [2020-10-13 05:26:21,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-13 05:26:21,233 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 125 [2020-10-13 05:26:21,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:26:21,235 INFO L225 Difference]: With dead ends: 441 [2020-10-13 05:26:21,235 INFO L226 Difference]: Without dead ends: 439 [2020-10-13 05:26:21,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=254, Invalid=1228, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 05:26:21,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-10-13 05:26:21,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 109. [2020-10-13 05:26:21,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-13 05:26:21,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 129 transitions. [2020-10-13 05:26:21,267 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 129 transitions. Word has length 125 [2020-10-13 05:26:21,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:26:21,267 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 129 transitions. [2020-10-13 05:26:21,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-13 05:26:21,267 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 129 transitions. [2020-10-13 05:26:21,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 05:26:21,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:26:21,268 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 7, 7, 7, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:26:21,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 05:26:21,269 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:26:21,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:26:21,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1313108952, now seen corresponding path program 7 times [2020-10-13 05:26:21,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:26:21,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292727318] [2020-10-13 05:26:21,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:26:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-13 05:26:21,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-13 05:26:21,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 05:26:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:26:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-13 05:26:21,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:26:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:21,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:21,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:26:21,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:26:21,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:26:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:21,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:21,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:26:21,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:26:21,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:26:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:21,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:21,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:21,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:26:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:21,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:21,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:21,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:26:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:21,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:21,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:21,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:26:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:21,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:21,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:21,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:26:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:21,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:21,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:21,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 05:26:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:21,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 05:26:21,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:21,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 05:26:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:21,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 05:26:21,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:21,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 05:26:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:21,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:21,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:21,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:26:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:21,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:21,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:21,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 05:26:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:21,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:26:21,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:21,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 05:26:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:21,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:21,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:21,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 05:26:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:21,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:21,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:21,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 05:26:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:21,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:21,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:21,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-13 05:26:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:21,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:21,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:21,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 05:26:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:21,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:21,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:21,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 05:26:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:21,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:21,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:21,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:21,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:21,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:21,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:21,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:21,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:21,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:21,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:21,989 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 12 proven. 91 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-13 05:26:21,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [292727318] [2020-10-13 05:26:21,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:26:21,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-13 05:26:21,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970660155] [2020-10-13 05:26:21,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-13 05:26:21,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:26:21,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-13 05:26:21,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2020-10-13 05:26:21,991 INFO L87 Difference]: Start difference. First operand 109 states and 129 transitions. Second operand 17 states. [2020-10-13 05:26:49,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:26:49,762 INFO L93 Difference]: Finished difference Result 2934 states and 4616 transitions. [2020-10-13 05:26:49,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2020-10-13 05:26:49,764 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 133 [2020-10-13 05:26:49,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:26:49,779 INFO L225 Difference]: With dead ends: 2934 [2020-10-13 05:26:49,779 INFO L226 Difference]: Without dead ends: 2932 [2020-10-13 05:26:49,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31611 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=6514, Invalid=63446, Unknown=0, NotChecked=0, Total=69960 [2020-10-13 05:26:49,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2020-10-13 05:26:49,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 157. [2020-10-13 05:26:49,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-13 05:26:49,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 194 transitions. [2020-10-13 05:26:49,948 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 194 transitions. Word has length 133 [2020-10-13 05:26:49,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:26:49,948 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 194 transitions. [2020-10-13 05:26:49,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-13 05:26:49,949 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 194 transitions. [2020-10-13 05:26:49,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 05:26:49,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:26:49,950 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 7, 7, 7, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:26:49,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 05:26:49,950 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:26:49,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:26:49,950 INFO L82 PathProgramCache]: Analyzing trace with hash 420995498, now seen corresponding path program 1 times [2020-10-13 05:26:49,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:26:49,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174427164] [2020-10-13 05:26:49,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:26:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:49,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:50,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:50,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:51,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:51,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:54,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:54,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-13 05:26:54,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 05:26:54,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 05:26:54,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:54,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 05:26:54,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:26:54,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-13 05:26:54,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:55,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:26:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:55,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:26:55,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:26:55,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:26:55,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:26:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:55,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:55,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:26:55,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:26:55,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:26:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:55,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:26:55,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:55,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:55,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:26:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:55,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:26:55,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:55,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:55,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:26:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:55,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:26:55,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:55,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:26:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:55,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:26:55,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:55,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:55,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:26:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:55,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:26:55,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:55,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:55,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 05:26:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:55,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:26:55,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:55,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:55,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 05:26:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:55,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:26:55,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:55,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 05:26:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:55,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:26:55,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:55,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:55,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:26:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:55,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 05:26:55,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:55,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:55,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 05:26:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:26:55,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:26:55,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:55,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:26:55,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 05:26:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:55,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 05:26:55,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 05:26:55,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:26:55,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 05:26:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:55,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:26:55,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:55,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:55,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:26:55,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 05:26:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:55,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:26:55,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:55,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:55,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-13 05:26:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:55,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:26:55,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:55,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 05:26:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:55,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:26:55,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:55,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:55,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 05:26:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:26:55,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:26:55,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:26:55,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:26:55,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:26:55,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 05:26:55,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:26:55,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:26:55,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:26:55,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:26:55,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:26:55,927 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 11 proven. 107 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-13 05:26:55,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174427164] [2020-10-13 05:26:55,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:26:55,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-13 05:26:55,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773421864] [2020-10-13 05:26:55,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-13 05:26:55,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:26:55,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-13 05:26:55,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=418, Unknown=0, NotChecked=0, Total=462 [2020-10-13 05:26:55,935 INFO L87 Difference]: Start difference. First operand 157 states and 194 transitions. Second operand 22 states. [2020-10-13 05:27:34,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:27:34,901 INFO L93 Difference]: Finished difference Result 3113 states and 4879 transitions. [2020-10-13 05:27:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 291 states. [2020-10-13 05:27:34,902 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 133 [2020-10-13 05:27:34,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:27:34,915 INFO L225 Difference]: With dead ends: 3113 [2020-10-13 05:27:34,915 INFO L226 Difference]: Without dead ends: 3111 [2020-10-13 05:27:34,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 39 SyntacticMatches, 5 SemanticMatches, 297 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38617 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=5959, Invalid=83143, Unknown=0, NotChecked=0, Total=89102 [2020-10-13 05:27:34,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2020-10-13 05:27:35,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 188. [2020-10-13 05:27:35,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-13 05:27:35,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 244 transitions. [2020-10-13 05:27:35,079 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 244 transitions. Word has length 133 [2020-10-13 05:27:35,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:27:35,079 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 244 transitions. [2020-10-13 05:27:35,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-13 05:27:35,080 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 244 transitions. [2020-10-13 05:27:35,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 05:27:35,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:27:35,081 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 7, 7, 7, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:27:35,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 05:27:35,082 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:27:35,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:27:35,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1306149464, now seen corresponding path program 1 times [2020-10-13 05:27:35,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:27:35,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214929601] [2020-10-13 05:27:35,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:27:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:35,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:35,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:35,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:36,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-13 05:27:40,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 05:27:40,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 05:27:40,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 05:27:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:27:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-13 05:27:40,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:27:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:27:40,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:27:40,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:27:40,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:27:40,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:27:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:27:40,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 05:27:40,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:27:40,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:27:40,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 05:27:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:27:40,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:27:40,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:27:40,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:27:40,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 05:27:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:27:40,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 05:27:40,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:27:40,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:27:40,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 05:27:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:27:40,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:27:40,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:27:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:27:40,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 05:27:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:27:40,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:27:40,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:27:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:27:40,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 05:27:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:27:40,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:27:40,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:27:40,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:27:40,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 05:27:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:27:40,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:27:40,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:27:40,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:27:40,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 05:27:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:27:40,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:27:40,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:27:40,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:27:40,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 05:27:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:27:40,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:27:40,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:27:40,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:27:40,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 05:27:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:27:40,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:27:40,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:27:40,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:27:40,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 05:27:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:27:40,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:27:40,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:27:40,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 05:27:40,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 05:27:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:27:40,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:27:40,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:27:40,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:27:40,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 05:27:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:27:40,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:27:40,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:27:40,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:27:40,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 05:27:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:27:40,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:27:40,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:27:40,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:27:40,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-13 05:27:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:27:40,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:27:40,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:27:40,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:27:40,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 05:27:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:27:40,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:27:40,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 05:27:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:27:40,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 05:27:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:40,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:40,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:40,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:27:40,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:27:40,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:27:40,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:27:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:27:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:27:40,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:27:40,779 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 23 proven. 95 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-13 05:27:40,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214929601] [2020-10-13 05:27:40,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:27:40,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-13 05:27:40,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680041702] [2020-10-13 05:27:40,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-13 05:27:40,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:27:40,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-13 05:27:40,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2020-10-13 05:27:40,781 INFO L87 Difference]: Start difference. First operand 188 states and 244 transitions. Second operand 22 states. [2020-10-13 05:27:48,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:27:48,763 INFO L93 Difference]: Finished difference Result 707 states and 1027 transitions. [2020-10-13 05:27:48,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-10-13 05:27:48,767 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 133 [2020-10-13 05:27:48,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:27:48,774 INFO L225 Difference]: With dead ends: 707 [2020-10-13 05:27:48,774 INFO L226 Difference]: Without dead ends: 705 [2020-10-13 05:27:48,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1267 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=449, Invalid=4663, Unknown=0, NotChecked=0, Total=5112 [2020-10-13 05:27:48,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2020-10-13 05:27:48,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 188. [2020-10-13 05:27:48,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-13 05:27:48,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 244 transitions. [2020-10-13 05:27:48,870 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 244 transitions. Word has length 133 [2020-10-13 05:27:48,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:27:48,870 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 244 transitions. [2020-10-13 05:27:48,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-13 05:27:48,870 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 244 transitions. [2020-10-13 05:27:48,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 05:27:48,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:27:48,871 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 7, 7, 7, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:27:48,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 05:27:48,871 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:27:48,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:27:48,872 INFO L82 PathProgramCache]: Analyzing trace with hash -535415898, now seen corresponding path program 1 times [2020-10-13 05:27:48,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:27:48,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361457140] [2020-10-13 05:27:48,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:27:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:27:48,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:49,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:49,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:27:51,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:27:51,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-13 05:27:51,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:27:51,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2741 [2020-10-13 05:27:51,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:27:51,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 05:27:51,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:27:51,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-13 05:27:51,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0