/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Addition03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:17:02,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:17:02,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:17:03,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:17:03,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:17:03,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:17:03,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:17:03,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:17:03,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:17:03,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:17:03,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:17:03,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:17:03,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:17:03,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:17:03,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:17:03,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:17:03,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:17:03,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:17:03,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:17:03,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:17:03,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:17:03,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:17:03,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:17:03,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:17:03,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:17:03,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:17:03,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:17:03,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:17:03,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:17:03,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:17:03,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:17:03,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:17:03,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:17:03,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:17:03,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:17:03,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:17:03,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:17:03,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:17:03,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:17:03,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:17:03,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:17:03,111 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:17:03,156 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:17:03,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:17:03,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:17:03,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:17:03,159 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:17:03,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:17:03,160 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:17:03,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:17:03,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:17:03,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:17:03,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:17:03,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:17:03,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:17:03,162 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:17:03,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:17:03,163 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:17:03,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:17:03,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:17:03,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:17:03,164 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:17:03,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:17:03,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:17:03,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:17:03,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:17:03,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:17:03,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:17:03,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:17:03,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:17:03,165 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:17:03,166 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:17:03,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:17:03,640 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:17:03,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:17:03,647 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:17:03,648 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:17:03,649 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-25 04:17:03,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b472e2a10/24ce45c19d0b4c44b3dba0600d428a71/FLAG2c6e20cc3 [2020-09-25 04:17:04,266 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:17:04,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-25 04:17:04,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b472e2a10/24ce45c19d0b4c44b3dba0600d428a71/FLAG2c6e20cc3 [2020-09-25 04:17:04,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b472e2a10/24ce45c19d0b4c44b3dba0600d428a71 [2020-09-25 04:17:04,616 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:17:04,622 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:17:04,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:17:04,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:17:04,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:17:04,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:17:04" (1/1) ... [2020-09-25 04:17:04,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4734e8fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:17:04, skipping insertion in model container [2020-09-25 04:17:04,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:17:04" (1/1) ... [2020-09-25 04:17:04,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:17:04,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:17:04,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:17:04,884 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:17:04,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:17:04,916 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:17:04,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:17:04 WrapperNode [2020-09-25 04:17:04,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:17:04,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:17:04,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:17:04,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:17:04,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:17:04" (1/1) ... [2020-09-25 04:17:04,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:17:04" (1/1) ... [2020-09-25 04:17:04,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:17:04" (1/1) ... [2020-09-25 04:17:04,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:17:04" (1/1) ... [2020-09-25 04:17:04,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:17:04" (1/1) ... [2020-09-25 04:17:04,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:17:04" (1/1) ... [2020-09-25 04:17:04,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:17:04" (1/1) ... [2020-09-25 04:17:04,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:17:04,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:17:04,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:17:04,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:17:04,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:17:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:17:05,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:17:05,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:17:05,104 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-09-25 04:17:05,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:17:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:17:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:17:05,105 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-09-25 04:17:05,105 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:17:05,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:17:05,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:17:05,338 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:17:05,338 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 04:17:05,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:17:05 BoogieIcfgContainer [2020-09-25 04:17:05,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:17:05,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:17:05,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:17:05,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:17:05,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:17:04" (1/3) ... [2020-09-25 04:17:05,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c33426d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:17:05, skipping insertion in model container [2020-09-25 04:17:05,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:17:04" (2/3) ... [2020-09-25 04:17:05,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c33426d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:17:05, skipping insertion in model container [2020-09-25 04:17:05,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:17:05" (3/3) ... [2020-09-25 04:17:05,353 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2020-09-25 04:17:05,364 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:17:05,376 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:17:05,396 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:17:05,431 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:17:05,432 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:17:05,432 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:17:05,432 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:17:05,432 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:17:05,433 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:17:05,433 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:17:05,433 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:17:05,452 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-09-25 04:17:05,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-25 04:17:05,461 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:05,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:05,462 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:05,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:05,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1218957033, now seen corresponding path program 1 times [2020-09-25 04:17:05,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:05,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395957958] [2020-09-25 04:17:05,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:05,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:05,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:05,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 04:17:05,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:05,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-25 04:17:05,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:05,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:05,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:17:05,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:17:05,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 04:17:05,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:17:05,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:05,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:05,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:05,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:05,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:05,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:17:05,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:05,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:05,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:05,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:05,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:05,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:05,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:05,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:05,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:05,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:17:05,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:05,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 04:17:05,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:05,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:05,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:17:05,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:05,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:17:05,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:05,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:17:05,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395957958] [2020-09-25 04:17:06,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:17:06,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:17:06,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349096593] [2020-09-25 04:17:06,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:17:06,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:06,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:17:06,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:17:06,044 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 5 states. [2020-09-25 04:17:06,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:06,177 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2020-09-25 04:17:06,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:17:06,179 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-09-25 04:17:06,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:06,192 INFO L225 Difference]: With dead ends: 53 [2020-09-25 04:17:06,193 INFO L226 Difference]: Without dead ends: 35 [2020-09-25 04:17:06,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:17:06,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-25 04:17:06,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-25 04:17:06,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-25 04:17:06,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2020-09-25 04:17:06,253 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 22 [2020-09-25 04:17:06,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:06,253 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2020-09-25 04:17:06,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:17:06,254 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2020-09-25 04:17:06,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 04:17:06,257 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:06,257 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:06,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:17:06,258 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:06,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:06,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1438677315, now seen corresponding path program 1 times [2020-09-25 04:17:06,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:06,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836245633] [2020-09-25 04:17:06,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:06,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:06,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:06,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 04:17:06,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:06,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-25 04:17:06,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:06,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:06,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:17:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:17:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:17:06,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:06,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:06,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:06,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:06,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:06,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:06,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:06,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:06,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:06,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:06,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:06,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:06,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:06,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:06,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:06,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 04:17:06,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:06,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 04:17:06,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:06,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:06,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:17:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:17:06,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:06,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:06,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:06,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:06,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:17:06,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:06,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 04:17:06,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:06,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:06,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:17:06,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:06,752 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 04:17:06,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836245633] [2020-09-25 04:17:06,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:06,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 04:17:06,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876907670] [2020-09-25 04:17:06,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:17:06,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:06,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:17:06,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:17:06,758 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 6 states. [2020-09-25 04:17:06,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:06,871 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2020-09-25 04:17:06,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:17:06,872 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-09-25 04:17:06,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:06,874 INFO L225 Difference]: With dead ends: 48 [2020-09-25 04:17:06,874 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 04:17:06,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:17:06,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 04:17:06,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2020-09-25 04:17:06,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 04:17:06,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2020-09-25 04:17:06,886 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 32 [2020-09-25 04:17:06,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:06,886 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2020-09-25 04:17:06,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:17:06,887 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2020-09-25 04:17:06,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 04:17:06,888 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:06,888 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:06,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:17:06,889 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:06,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:06,889 INFO L82 PathProgramCache]: Analyzing trace with hash -305631715, now seen corresponding path program 1 times [2020-09-25 04:17:06,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:06,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634000826] [2020-09-25 04:17:06,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:06,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:06,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 04:17:07,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:17:07,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-25 04:17:07,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:17:07,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 04:17:07,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:17:07,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:17:07,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:07,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:07,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:07,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:07,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:07,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:07,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:07,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:07,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:17:07,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:17:07,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 04:17:07,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:17:07,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:17:07,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:17:07,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:17:07,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:07,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 04:17:07,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:07,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:17:07,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:17:07,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 04:17:07,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:17:07,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:07,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 04:17:07,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634000826] [2020-09-25 04:17:07,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:17:07,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:17:07,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783936468] [2020-09-25 04:17:07,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:17:07,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:07,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:17:07,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:17:07,407 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 4 states. [2020-09-25 04:17:07,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:07,461 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 04:17:07,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 04:17:07,463 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-09-25 04:17:07,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:07,466 INFO L225 Difference]: With dead ends: 58 [2020-09-25 04:17:07,467 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 04:17:07,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:17:07,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 04:17:07,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2020-09-25 04:17:07,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 04:17:07,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2020-09-25 04:17:07,488 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 33 [2020-09-25 04:17:07,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:07,489 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2020-09-25 04:17:07,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:17:07,489 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2020-09-25 04:17:07,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 04:17:07,491 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:07,492 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-09-25 04:17:07,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:17:07,492 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:07,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:07,492 INFO L82 PathProgramCache]: Analyzing trace with hash 967575145, now seen corresponding path program 2 times [2020-09-25 04:17:07,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:07,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476204087] [2020-09-25 04:17:07,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:07,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 04:17:07,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:07,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-25 04:17:07,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:17:07,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:17:07,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 04:17:07,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:07,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:07,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:07,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:07,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:07,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:07,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:07,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:07,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:07,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:07,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 04:17:07,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:07,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 04:17:07,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:17:07,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:07,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:17:07,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:07,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:07,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 04:17:07,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:07,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 04:17:07,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:17:07,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:07,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:17:07,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:07,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:07,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:07,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:07,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:17:07,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:07,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:17:07,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:07,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:07,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:07,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:07,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:17:07,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:07,964 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 04:17:07,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476204087] [2020-09-25 04:17:07,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:07,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 04:17:07,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448436217] [2020-09-25 04:17:07,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:17:07,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:07,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:17:07,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:17:07,968 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand 8 states. [2020-09-25 04:17:08,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:08,143 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2020-09-25 04:17:08,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:17:08,144 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-09-25 04:17:08,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:08,146 INFO L225 Difference]: With dead ends: 66 [2020-09-25 04:17:08,146 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 04:17:08,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:17:08,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 04:17:08,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-25 04:17:08,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-25 04:17:08,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2020-09-25 04:17:08,174 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 42 [2020-09-25 04:17:08,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:08,174 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2020-09-25 04:17:08,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:17:08,175 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2020-09-25 04:17:08,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 04:17:08,180 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:08,180 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:08,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:17:08,181 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:08,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:08,181 INFO L82 PathProgramCache]: Analyzing trace with hash -321617853, now seen corresponding path program 3 times [2020-09-25 04:17:08,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:08,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901804810] [2020-09-25 04:17:08,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:08,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:08,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:08,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 04:17:08,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:08,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-25 04:17:08,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:08,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:08,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 04:17:08,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:17:08,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 04:17:08,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:08,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:08,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:08,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:08,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:08,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:08,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:08,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:08,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:08,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:08,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:08,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:08,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:08,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:08,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:08,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:08,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 04:17:08,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:08,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-09-25 04:17:08,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:08,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:08,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 04:17:08,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:08,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 04:17:08,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:08,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:08,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:08,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:08,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 04:17:08,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:08,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 04:17:08,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:08,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:08,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:17:08,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:08,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:17:08,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:08,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:08,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:08,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:08,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 04:17:08,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:08,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 04:17:08,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:08,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:08,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:17:08,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:08,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:17:08,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:08,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:08,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:08,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:08,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:17:08,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:08,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:17:08,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:08,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:08,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:08,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:08,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:17:09,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:09,034 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-25 04:17:09,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901804810] [2020-09-25 04:17:09,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:09,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 04:17:09,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599659955] [2020-09-25 04:17:09,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:17:09,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:09,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:17:09,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:17:09,036 INFO L87 Difference]: Start difference. First operand 60 states and 74 transitions. Second operand 10 states. [2020-09-25 04:17:09,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:09,251 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2020-09-25 04:17:09,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:17:09,252 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-09-25 04:17:09,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:09,254 INFO L225 Difference]: With dead ends: 71 [2020-09-25 04:17:09,254 INFO L226 Difference]: Without dead ends: 65 [2020-09-25 04:17:09,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-09-25 04:17:09,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-25 04:17:09,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-09-25 04:17:09,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-25 04:17:09,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 79 transitions. [2020-09-25 04:17:09,265 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 79 transitions. Word has length 52 [2020-09-25 04:17:09,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:09,266 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 79 transitions. [2020-09-25 04:17:09,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:17:09,266 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 79 transitions. [2020-09-25 04:17:09,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 04:17:09,268 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:09,269 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:09,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:17:09,269 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:09,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:09,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1776668137, now seen corresponding path program 4 times [2020-09-25 04:17:09,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:09,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1847908542] [2020-09-25 04:17:09,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:09,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:09,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:09,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 04:17:09,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:09,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-09-25 04:17:09,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:09,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:09,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 04:17:09,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:17:09,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 04:17:09,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:09,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:09,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:09,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:09,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:09,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:09,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:09,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:09,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:09,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:09,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:09,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:09,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:09,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:09,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:09,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:09,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:17:09,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:09,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-25 04:17:09,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:09,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:09,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 04:17:09,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:09,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 04:17:09,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:09,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:09,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:10,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:10,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 04:17:10,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:10,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-09-25 04:17:10,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:10,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:10,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:17:10,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:10,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 04:17:10,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:10,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:10,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:10,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:10,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 04:17:10,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:10,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 04:17:10,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:10,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:17:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:17:10,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:10,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:10,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:10,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:10,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 04:17:10,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:10,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 04:17:10,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:10,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:10,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:17:10,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:10,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:17:10,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:10,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:10,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:10,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:10,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:17:10,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:10,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:17:10,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:10,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:10,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:10,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:10,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:17:10,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:10,334 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 12 proven. 38 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-25 04:17:10,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1847908542] [2020-09-25 04:17:10,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:10,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 04:17:10,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572028085] [2020-09-25 04:17:10,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:17:10,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:10,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:17:10,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:17:10,336 INFO L87 Difference]: Start difference. First operand 65 states and 79 transitions. Second operand 10 states. [2020-09-25 04:17:10,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:10,489 INFO L93 Difference]: Finished difference Result 76 states and 90 transitions. [2020-09-25 04:17:10,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:17:10,490 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-09-25 04:17:10,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:10,492 INFO L225 Difference]: With dead ends: 76 [2020-09-25 04:17:10,492 INFO L226 Difference]: Without dead ends: 70 [2020-09-25 04:17:10,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:17:10,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-25 04:17:10,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-25 04:17:10,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-25 04:17:10,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2020-09-25 04:17:10,502 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 62 [2020-09-25 04:17:10,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:10,502 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2020-09-25 04:17:10,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:17:10,503 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2020-09-25 04:17:10,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 04:17:10,505 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:10,505 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] [2020-09-25 04:17:10,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:17:10,506 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:10,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:10,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1043024061, now seen corresponding path program 5 times [2020-09-25 04:17:10,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:10,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242328378] [2020-09-25 04:17:10,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:10,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:10,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:10,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 04:17:10,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:10,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-09-25 04:17:10,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:10,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:10,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 04:17:10,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:17:10,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 04:17:10,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:10,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:10,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:10,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:10,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:10,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:10,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:10,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:10,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:10,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:10,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:10,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:10,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:10,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:10,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:11,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:11,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:17:11,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:11,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-09-25 04:17:11,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:11,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 04:17:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:11,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:17:11,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:11,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:11,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:11,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:11,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:17:11,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:11,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-25 04:17:11,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:11,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:11,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:17:11,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:11,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 04:17:11,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:11,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:11,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:11,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:11,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 04:17:11,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:11,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-25 04:17:11,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:11,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:11,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:17:11,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:11,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 04:17:11,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:17:11,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:11,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:12,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:12,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 04:17:12,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:12,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 04:17:12,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:12,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:12,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:17:12,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:12,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:17:12,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:12,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:12,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:12,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:12,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 04:17:12,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:12,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 04:17:12,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:12,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:17:12,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:12,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:17:12,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:12,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:12,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:12,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:12,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:17:12,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:12,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:17:12,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:12,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:12,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:12,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:12,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:17:12,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 4 proven. 69 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-09-25 04:17:12,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [242328378] [2020-09-25 04:17:12,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:12,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 04:17:12,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742925581] [2020-09-25 04:17:12,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 04:17:12,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:12,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 04:17:12,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:17:12,243 INFO L87 Difference]: Start difference. First operand 70 states and 84 transitions. Second operand 11 states. [2020-09-25 04:17:12,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:12,436 INFO L93 Difference]: Finished difference Result 81 states and 95 transitions. [2020-09-25 04:17:12,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:17:12,436 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 72 [2020-09-25 04:17:12,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:12,439 INFO L225 Difference]: With dead ends: 81 [2020-09-25 04:17:12,440 INFO L226 Difference]: Without dead ends: 75 [2020-09-25 04:17:12,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-25 04:17:12,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-25 04:17:12,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-09-25 04:17:12,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-25 04:17:12,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 89 transitions. [2020-09-25 04:17:12,458 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 89 transitions. Word has length 72 [2020-09-25 04:17:12,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:12,458 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 89 transitions. [2020-09-25 04:17:12,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 04:17:12,458 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 89 transitions. [2020-09-25 04:17:12,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-25 04:17:12,461 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:12,461 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:12,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:17:12,462 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:12,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:12,463 INFO L82 PathProgramCache]: Analyzing trace with hash -473356951, now seen corresponding path program 6 times [2020-09-25 04:17:12,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:12,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975202899] [2020-09-25 04:17:12,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:12,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:13,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:13,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-09-25 04:17:13,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:13,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 544 [2020-09-25 04:17:13,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:13,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 04:17:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:17:13,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 04:17:13,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:13,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:13,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:13,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:13,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:13,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:13,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:17:13,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:13,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:13,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:13,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:13,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:13,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:13,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:13,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:13,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:13,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 04:17:13,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:13,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-09-25 04:17:13,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:13,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:13,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 04:17:13,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:13,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 04:17:13,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:13,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:13,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:13,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:13,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:17:13,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:13,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-09-25 04:17:13,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:13,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:13,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:17:13,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:13,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:17:13,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:17:13,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:14,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:14,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:14,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:17:14,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:14,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-25 04:17:14,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:14,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:17:14,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:14,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 04:17:14,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:14,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:14,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:14,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:14,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 04:17:14,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:14,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-25 04:17:14,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:14,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:14,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:17:14,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:14,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 04:17:14,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:14,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:14,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:14,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:14,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 04:17:14,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:14,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 04:17:14,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:14,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:17:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:17:14,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:14,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:14,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:14,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:14,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 04:17:14,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:14,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 04:17:14,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:14,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:14,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:17:14,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:14,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:17:14,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:14,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:14,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:14,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:14,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:17:14,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:14,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:17:14,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:14,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:17:14,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:14,756 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 20 proven. 93 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-25 04:17:14,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975202899] [2020-09-25 04:17:14,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:14,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 04:17:14,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18754753] [2020-09-25 04:17:14,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 04:17:14,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:14,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 04:17:14,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:17:14,759 INFO L87 Difference]: Start difference. First operand 75 states and 89 transitions. Second operand 12 states. [2020-09-25 04:17:14,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:14,939 INFO L93 Difference]: Finished difference Result 86 states and 100 transitions. [2020-09-25 04:17:14,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:17:14,939 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2020-09-25 04:17:14,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:14,942 INFO L225 Difference]: With dead ends: 86 [2020-09-25 04:17:14,942 INFO L226 Difference]: Without dead ends: 80 [2020-09-25 04:17:14,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-09-25 04:17:14,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-25 04:17:14,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-09-25 04:17:14,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-25 04:17:14,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 94 transitions. [2020-09-25 04:17:14,952 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 94 transitions. Word has length 82 [2020-09-25 04:17:14,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:14,952 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 94 transitions. [2020-09-25 04:17:14,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 04:17:14,953 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 94 transitions. [2020-09-25 04:17:14,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-09-25 04:17:14,954 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:14,954 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:14,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:17:14,954 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:14,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:14,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1366105667, now seen corresponding path program 7 times [2020-09-25 04:17:14,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:14,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721194167] [2020-09-25 04:17:14,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:14,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:15,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:15,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 04:17:15,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:15,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 657 [2020-09-25 04:17:15,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:15,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:15,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 04:17:15,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:17:15,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 04:17:15,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:15,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:15,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:15,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:15,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:15,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:15,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:15,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:15,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:15,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:15,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:15,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:15,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:15,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:15,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:16,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:16,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 04:17:16,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:16,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 495 [2020-09-25 04:17:16,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:16,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:16,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 04:17:16,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:16,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 04:17:16,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:16,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:16,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:16,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:16,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 04:17:16,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:16,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-09-25 04:17:16,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:16,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:16,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:17:16,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:16,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 04:17:16,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:16,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:16,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:16,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:16,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:17:16,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:16,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-09-25 04:17:16,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:16,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:16,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:17:16,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:16,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:17:16,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:17,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:17,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:17,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:17,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:17:17,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:17,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-25 04:17:17,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:17,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:17,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:17:17,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:17,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 04:17:17,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:17:17,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:17,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:17,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:17,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 04:17:17,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:17,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-25 04:17:17,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:17,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:17,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:17:17,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:17,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 04:17:17,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:17,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:17,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:17,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:17,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 04:17:17,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:17,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 04:17:17,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:17,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:17,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:17:17,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:17,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:17:17,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:17,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:17,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:17,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:17,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 04:17:17,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:17,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 04:17:17,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:17,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:17,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:17:17,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:17,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:17:17,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:17,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:17,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:17,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:17,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:17:17,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:17,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:17:17,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:17,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:17,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:17,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:17,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:17:17,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:17,729 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 12 proven. 131 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-09-25 04:17:17,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721194167] [2020-09-25 04:17:17,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:17,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 04:17:17,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244701148] [2020-09-25 04:17:17,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 04:17:17,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:17,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 04:17:17,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:17:17,737 INFO L87 Difference]: Start difference. First operand 80 states and 94 transitions. Second operand 13 states. [2020-09-25 04:17:17,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:17,934 INFO L93 Difference]: Finished difference Result 91 states and 105 transitions. [2020-09-25 04:17:17,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 04:17:17,934 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 92 [2020-09-25 04:17:17,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:17,936 INFO L225 Difference]: With dead ends: 91 [2020-09-25 04:17:17,936 INFO L226 Difference]: Without dead ends: 85 [2020-09-25 04:17:17,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-25 04:17:17,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-25 04:17:17,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-09-25 04:17:17,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-25 04:17:17,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 99 transitions. [2020-09-25 04:17:17,951 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 99 transitions. Word has length 92 [2020-09-25 04:17:17,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:17,951 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 99 transitions. [2020-09-25 04:17:17,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 04:17:17,952 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 99 transitions. [2020-09-25 04:17:17,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-25 04:17:17,956 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:17,957 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:17,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:17:17,957 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:17,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:17,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1932915479, now seen corresponding path program 8 times [2020-09-25 04:17:17,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:17,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010333235] [2020-09-25 04:17:17,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:17,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:18,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:18,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-25 04:17:18,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:18,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 695 [2020-09-25 04:17:18,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:18,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:18,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 04:17:18,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:17:18,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 04:17:18,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:18,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:18,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:18,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:18,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:18,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:18,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:18,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:18,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:18,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:18,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:18,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:18,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:18,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:18,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:19,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:19,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 04:17:19,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:19,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-09-25 04:17:19,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:19,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:19,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 04:17:19,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:19,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 04:17:19,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:19,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:19,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:19,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:19,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 04:17:19,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:19,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-09-25 04:17:19,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:19,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:19,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:17:19,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:19,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 04:17:19,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:19,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:19,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:20,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:20,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 04:17:20,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:20,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-09-25 04:17:20,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:20,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:20,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:17:20,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:20,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 04:17:20,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:20,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:20,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:20,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:20,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:17:20,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:20,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-25 04:17:20,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:20,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:20,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:17:20,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:20,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:17:20,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:20,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:20,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:20,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:20,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:17:20,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:20,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-25 04:17:20,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:20,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:20,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:17:20,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:20,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 04:17:20,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:20,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:20,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:20,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:20,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 04:17:20,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:20,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-25 04:17:20,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:20,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:17:20,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:20,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 04:17:20,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:21,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:21,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:21,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:21,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 04:17:21,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:21,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 04:17:21,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:21,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:21,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:17:21,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:21,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:17:21,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:21,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:21,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:21,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:21,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 04:17:21,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:21,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 04:17:21,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:21,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:21,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:17:21,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:21,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:17:21,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:21,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:21,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:21,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:21,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:17:21,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:21,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:17:21,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:21,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:21,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:21,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:21,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:17:21,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:21,265 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2020-09-25 04:17:21,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010333235] [2020-09-25 04:17:21,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:21,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 04:17:21,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861556745] [2020-09-25 04:17:21,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 04:17:21,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:21,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 04:17:21,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-25 04:17:21,268 INFO L87 Difference]: Start difference. First operand 85 states and 99 transitions. Second operand 14 states. [2020-09-25 04:17:21,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:21,468 INFO L93 Difference]: Finished difference Result 194 states and 223 transitions. [2020-09-25 04:17:21,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:17:21,469 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 102 [2020-09-25 04:17:21,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:21,470 INFO L225 Difference]: With dead ends: 194 [2020-09-25 04:17:21,470 INFO L226 Difference]: Without dead ends: 121 [2020-09-25 04:17:21,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-09-25 04:17:21,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-09-25 04:17:21,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 84. [2020-09-25 04:17:21,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-25 04:17:21,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2020-09-25 04:17:21,480 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 102 [2020-09-25 04:17:21,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:21,480 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2020-09-25 04:17:21,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 04:17:21,481 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2020-09-25 04:17:21,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 04:17:21,482 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:21,482 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:21,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 04:17:21,483 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:21,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:21,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1924549309, now seen corresponding path program 9 times [2020-09-25 04:17:21,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:21,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81519337] [2020-09-25 04:17:21,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:21,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:22,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:22,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-09-25 04:17:22,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:22,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 781 [2020-09-25 04:17:22,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:22,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:22,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 04:17:22,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:17:22,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-25 04:17:22,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:22,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:22,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:22,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:22,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:22,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:22,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:22,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:22,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:22,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:22,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:22,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:22,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:22,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:22,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:22,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:22,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 04:17:22,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:22,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 667 [2020-09-25 04:17:22,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:22,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:22,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 04:17:22,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:22,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 04:17:22,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:23,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:23,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:23,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:23,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 04:17:23,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:23,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-09-25 04:17:23,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:23,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 04:17:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 04:17:23,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:23,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:23,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:24,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:24,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 04:17:24,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:24,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-09-25 04:17:24,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:24,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:24,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:17:24,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:24,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 04:17:24,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:24,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:24,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:24,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:24,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 04:17:24,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:24,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-09-25 04:17:24,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:24,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:24,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:17:24,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:24,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 04:17:24,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:24,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:24,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:24,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:24,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:17:24,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:24,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 04:17:24,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:24,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:24,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:17:24,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:17:24,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:24,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:24,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:24,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:24,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:17:24,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:24,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-25 04:17:24,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:24,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:24,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:17:24,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:24,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 04:17:24,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:24,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:24,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:25,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:25,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 04:17:25,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:25,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-25 04:17:25,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:25,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:25,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:17:25,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:25,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 04:17:25,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:25,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:25,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:25,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:25,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 04:17:25,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:25,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 04:17:25,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:25,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:25,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:17:25,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:25,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:17:25,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:25,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:25,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:25,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:25,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 04:17:25,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:25,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 04:17:25,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:25,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:17:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:17:25,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:25,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:25,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:25,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:25,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:17:25,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:25,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:17:25,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:25,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:25,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:25,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:25,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:17:25,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:25,374 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 30 proven. 225 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-09-25 04:17:25,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81519337] [2020-09-25 04:17:25,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:25,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 04:17:25,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878929005] [2020-09-25 04:17:25,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 04:17:25,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:25,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 04:17:25,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:17:25,377 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand 15 states. [2020-09-25 04:17:25,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:25,593 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2020-09-25 04:17:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 04:17:25,593 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 112 [2020-09-25 04:17:25,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:25,594 INFO L225 Difference]: With dead ends: 95 [2020-09-25 04:17:25,594 INFO L226 Difference]: Without dead ends: 89 [2020-09-25 04:17:25,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-25 04:17:25,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-09-25 04:17:25,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-09-25 04:17:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-25 04:17:25,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2020-09-25 04:17:25,609 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 112 [2020-09-25 04:17:25,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:25,610 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2020-09-25 04:17:25,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 04:17:25,610 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2020-09-25 04:17:25,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-25 04:17:25,611 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:25,611 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:25,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 04:17:25,612 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:25,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:25,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1700562025, now seen corresponding path program 10 times [2020-09-25 04:17:25,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:25,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590516461] [2020-09-25 04:17:25,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:25,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:26,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:26,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 04:17:26,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:26,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 812 [2020-09-25 04:17:26,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:26,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:26,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 04:17:26,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:17:26,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-25 04:17:26,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:26,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:26,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:26,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:26,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:26,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:26,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:26,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:26,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:26,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:26,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:26,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:26,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:26,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:26,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:27,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:27,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 04:17:27,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:27,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 737 [2020-09-25 04:17:27,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:27,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:27,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 04:17:27,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:27,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 04:17:27,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:27,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:27,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:27,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:27,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 04:17:27,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:27,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-09-25 04:17:27,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:27,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:27,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 04:17:27,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:27,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 04:17:27,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:27,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:27,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:28,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:28,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 04:17:28,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:28,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 587 [2020-09-25 04:17:28,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:28,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:28,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 04:17:28,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:28,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 04:17:28,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:28,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:28,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:28,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:28,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 04:17:28,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:28,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-09-25 04:17:28,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:28,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:28,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:17:28,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:28,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 04:17:28,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:28,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:28,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:29,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:29,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 04:17:29,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:29,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-25 04:17:29,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:29,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:29,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:17:29,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:29,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 04:17:29,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:29,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:29,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:29,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:29,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:17:29,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:29,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-25 04:17:29,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:29,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:17:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:17:29,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:29,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:29,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:29,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:29,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:17:29,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:29,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-25 04:17:29,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:29,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:29,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:17:29,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:29,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 04:17:29,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:29,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:29,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:29,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:29,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 04:17:29,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:29,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 04:17:29,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:29,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:29,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:17:29,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:29,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 04:17:29,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:29,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:29,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:30,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:30,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 04:17:30,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:30,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 04:17:30,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:30,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:30,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:17:30,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:30,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:17:30,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:30,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:30,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:30,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:30,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 04:17:30,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:30,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 04:17:30,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:30,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:30,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:17:30,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:30,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:17:30,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:30,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:30,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:30,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:30,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:17:30,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:30,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:17:30,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:30,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:30,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:30,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:30,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:17:30,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:30,191 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 17 proven. 284 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-09-25 04:17:30,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [590516461] [2020-09-25 04:17:30,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:30,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 04:17:30,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614735624] [2020-09-25 04:17:30,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 04:17:30,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:30,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 04:17:30,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-25 04:17:30,194 INFO L87 Difference]: Start difference. First operand 89 states and 97 transitions. Second operand 16 states. [2020-09-25 04:17:30,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:30,423 INFO L93 Difference]: Finished difference Result 147 states and 158 transitions. [2020-09-25 04:17:30,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 04:17:30,424 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 122 [2020-09-25 04:17:30,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:30,425 INFO L225 Difference]: With dead ends: 147 [2020-09-25 04:17:30,425 INFO L226 Difference]: Without dead ends: 141 [2020-09-25 04:17:30,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-25 04:17:30,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-09-25 04:17:30,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 101. [2020-09-25 04:17:30,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 04:17:30,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 112 transitions. [2020-09-25 04:17:30,438 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 112 transitions. Word has length 122 [2020-09-25 04:17:30,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:30,438 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 112 transitions. [2020-09-25 04:17:30,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 04:17:30,439 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 112 transitions. [2020-09-25 04:17:30,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-25 04:17:30,442 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:30,442 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:30,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 04:17:30,442 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:30,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:30,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1676247997, now seen corresponding path program 11 times [2020-09-25 04:17:30,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:30,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568709665] [2020-09-25 04:17:30,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:30,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:31,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:31,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-25 04:17:31,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:31,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 940 [2020-09-25 04:17:31,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:31,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:31,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 04:17:31,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:17:31,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-25 04:17:31,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:31,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:31,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:31,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:31,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:31,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:31,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:31,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:31,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:31,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:31,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:31,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:31,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:31,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:31,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:32,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:32,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 04:17:32,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:32,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 776 [2020-09-25 04:17:32,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:32,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:32,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 04:17:32,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:32,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-25 04:17:32,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:32,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:32,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:32,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:32,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 04:17:32,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:32,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 713 [2020-09-25 04:17:32,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:32,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:32,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 04:17:32,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:32,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 04:17:32,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:33,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:33,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:33,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:33,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 04:17:33,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:33,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-09-25 04:17:33,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:33,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:33,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 04:17:33,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:33,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 04:17:33,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:33,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:33,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:34,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:34,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 04:17:34,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:34,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-09-25 04:17:34,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:34,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:34,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 04:17:34,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:34,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 04:17:34,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:34,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:34,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:34,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:34,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 04:17:34,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:34,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-09-25 04:17:34,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:34,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:34,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:17:34,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:34,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 04:17:34,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:34,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:34,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:34,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:34,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 04:17:34,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:34,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-09-25 04:17:34,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:34,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:34,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:17:34,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:34,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 04:17:34,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:34,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:34,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:17:35,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:35,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 04:17:35,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:17:35,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:35,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:17:35,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:35,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:35,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:17:35,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:35,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-25 04:17:35,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:17:35,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:35,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 04:17:35,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:35,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:35,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 04:17:35,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:35,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 04:17:35,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:17:35,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:35,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 04:17:35,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:35,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:35,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 04:17:35,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:35,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 04:17:35,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:17:35,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:35,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:17:35,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:35,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:35,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 04:17:35,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:35,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 04:17:35,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:17:35,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:35,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:17:35,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:35,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:35,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:35,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:35,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:17:35,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:35,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:17:35,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:35,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:35,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:35,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:35,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:17:35,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:35,751 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 18 proven. 342 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-09-25 04:17:35,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568709665] [2020-09-25 04:17:35,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:35,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 04:17:35,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122424477] [2020-09-25 04:17:35,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 04:17:35,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:35,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 04:17:35,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-25 04:17:35,754 INFO L87 Difference]: Start difference. First operand 101 states and 112 transitions. Second operand 17 states. [2020-09-25 04:17:36,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:36,058 INFO L93 Difference]: Finished difference Result 112 states and 123 transitions. [2020-09-25 04:17:36,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 04:17:36,058 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 132 [2020-09-25 04:17:36,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:36,060 INFO L225 Difference]: With dead ends: 112 [2020-09-25 04:17:36,060 INFO L226 Difference]: Without dead ends: 106 [2020-09-25 04:17:36,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-25 04:17:36,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-25 04:17:36,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-09-25 04:17:36,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-09-25 04:17:36,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 117 transitions. [2020-09-25 04:17:36,068 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 117 transitions. Word has length 132 [2020-09-25 04:17:36,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:36,068 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 117 transitions. [2020-09-25 04:17:36,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 04:17:36,068 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 117 transitions. [2020-09-25 04:17:36,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 04:17:36,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:36,070 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:36,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 04:17:36,070 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:36,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:36,071 INFO L82 PathProgramCache]: Analyzing trace with hash -923497495, now seen corresponding path program 12 times [2020-09-25 04:17:36,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:36,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1568720308] [2020-09-25 04:17:36,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:36,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:37,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:37,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 04:17:37,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:37,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1053 [2020-09-25 04:17:37,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:37,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:37,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 04:17:37,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:17:37,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-09-25 04:17:37,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:37,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:37,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:37,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:37,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:37,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:37,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:37,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:37,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:37,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:37,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:37,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:37,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:37,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:37,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:38,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:38,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 04:17:38,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:38,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 875 [2020-09-25 04:17:38,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:38,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:38,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 04:17:38,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:38,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-25 04:17:38,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:38,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:38,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:38,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:38,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 04:17:38,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:38,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 856 [2020-09-25 04:17:38,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:38,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:38,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 04:17:38,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:38,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-25 04:17:38,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:38,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:39,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:39,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:39,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 04:17:39,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:39,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 681 [2020-09-25 04:17:39,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:39,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:39,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 04:17:39,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:39,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 04:17:39,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:39,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:39,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:40,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:40,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 04:17:40,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:40,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-09-25 04:17:40,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:40,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:40,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 04:17:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 04:17:40,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:40,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:40,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:40,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:40,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 04:17:40,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:40,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-09-25 04:17:40,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:40,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:40,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 04:17:40,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:40,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 04:17:40,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:40,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:40,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:41,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:41,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 04:17:41,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:41,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-09-25 04:17:41,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:41,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:41,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:17:41,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:41,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 04:17:41,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:41,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:41,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:41,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:41,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 04:17:41,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:41,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-09-25 04:17:41,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:41,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:41,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:17:41,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:41,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 04:17:41,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:41,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:41,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:41,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:41,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:17:41,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:41,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 04:17:41,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:41,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:41,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:17:41,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:41,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:17:41,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:41,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:41,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:42,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:42,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:17:42,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:42,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 04:17:42,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:42,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:42,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:17:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 04:17:42,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:42,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:42,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:42,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:42,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 04:17:42,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:42,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 04:17:42,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:42,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:42,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:17:42,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:42,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 04:17:42,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:42,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:42,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:42,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:42,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 04:17:42,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:42,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 04:17:42,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:42,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:42,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:17:42,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:42,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:17:42,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:42,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:42,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:42,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:42,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 04:17:42,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:42,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 04:17:42,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:42,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:17:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:42,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:17:42,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:42,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:42,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:42,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:42,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:17:42,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:42,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:17:42,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:42,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:42,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:42,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:42,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:17:42,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:42,444 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 61 proven. 405 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2020-09-25 04:17:42,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1568720308] [2020-09-25 04:17:42,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:42,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 04:17:42,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618667029] [2020-09-25 04:17:42,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 04:17:42,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:42,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 04:17:42,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-25 04:17:42,446 INFO L87 Difference]: Start difference. First operand 106 states and 117 transitions. Second operand 18 states. [2020-09-25 04:17:42,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:42,723 INFO L93 Difference]: Finished difference Result 117 states and 128 transitions. [2020-09-25 04:17:42,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 04:17:42,724 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 142 [2020-09-25 04:17:42,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:42,725 INFO L225 Difference]: With dead ends: 117 [2020-09-25 04:17:42,725 INFO L226 Difference]: Without dead ends: 111 [2020-09-25 04:17:42,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-09-25 04:17:42,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-25 04:17:42,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-09-25 04:17:42,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-09-25 04:17:42,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 122 transitions. [2020-09-25 04:17:42,735 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 122 transitions. Word has length 142 [2020-09-25 04:17:42,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:42,735 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 122 transitions. [2020-09-25 04:17:42,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 04:17:42,735 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 122 transitions. [2020-09-25 04:17:42,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 04:17:42,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:42,737 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:42,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 04:17:42,738 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:42,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:42,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1719700669, now seen corresponding path program 13 times [2020-09-25 04:17:42,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:42,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308481268] [2020-09-25 04:17:42,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:42,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:42,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:43,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:43,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 04:17:43,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:43,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1219 [2020-09-25 04:17:43,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:43,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:43,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 04:17:43,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:17:43,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-09-25 04:17:43,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:44,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:44,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:44,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:44,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:44,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:44,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:44,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:44,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:44,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:44,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:44,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:44,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:44,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:44,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:45,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:45,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-09-25 04:17:45,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:45,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1045 [2020-09-25 04:17:45,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:45,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 04:17:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-09-25 04:17:45,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:45,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:45,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:46,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:46,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 04:17:46,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:46,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 943 [2020-09-25 04:17:46,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:46,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:46,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 04:17:46,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:46,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-25 04:17:46,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:46,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:46,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:46,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:46,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 04:17:46,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:46,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 817 [2020-09-25 04:17:46,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:46,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 04:17:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-25 04:17:46,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:46,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:46,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:47,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:47,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 04:17:47,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:47,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 694 [2020-09-25 04:17:47,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:47,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:47,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 04:17:47,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:47,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 04:17:47,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:47,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:47,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:48,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:48,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 04:17:48,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:48,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 566 [2020-09-25 04:17:48,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:48,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 04:17:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 04:17:48,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:48,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:48,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:48,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:48,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 04:17:48,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:48,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-09-25 04:17:48,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:48,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:48,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 04:17:48,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:48,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 04:17:48,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:48,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:48,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:49,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:49,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 04:17:49,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:49,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-09-25 04:17:49,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:49,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:49,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:17:49,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:49,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 04:17:49,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:49,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:49,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:49,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:49,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 04:17:49,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:49,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-25 04:17:49,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:49,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:49,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:17:49,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:49,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 04:17:49,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:49,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:49,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:49,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:49,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:17:49,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:49,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-25 04:17:49,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:49,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:49,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:17:49,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:49,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:17:49,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:49,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:49,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:49,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:49,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:17:49,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:49,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-25 04:17:49,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:49,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:49,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:17:49,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:49,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 04:17:49,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:49,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:49,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:50,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:50,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 04:17:50,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:50,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 04:17:50,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:50,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:50,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:17:50,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:50,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 04:17:50,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:50,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:50,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:50,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:50,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 04:17:50,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:50,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 04:17:50,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:50,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:50,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:17:50,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:50,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:17:50,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:50,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:50,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:50,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:50,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 04:17:50,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:50,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 04:17:50,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:50,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:50,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:17:50,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:50,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:17:50,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:50,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:50,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:50,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:50,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:17:50,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:50,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:17:50,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:50,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:17:50,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:50,406 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 60 proven. 488 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2020-09-25 04:17:50,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308481268] [2020-09-25 04:17:50,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:50,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 04:17:50,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472446229] [2020-09-25 04:17:50,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 04:17:50,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:50,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 04:17:50,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342 [2020-09-25 04:17:50,408 INFO L87 Difference]: Start difference. First operand 111 states and 122 transitions. Second operand 19 states. [2020-09-25 04:17:50,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:17:50,737 INFO L93 Difference]: Finished difference Result 177 states and 189 transitions. [2020-09-25 04:17:50,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 04:17:50,737 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 152 [2020-09-25 04:17:50,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:17:50,739 INFO L225 Difference]: With dead ends: 177 [2020-09-25 04:17:50,740 INFO L226 Difference]: Without dead ends: 171 [2020-09-25 04:17:50,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=379, Invalid=677, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 04:17:50,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-09-25 04:17:50,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 109. [2020-09-25 04:17:50,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-25 04:17:50,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 117 transitions. [2020-09-25 04:17:50,753 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 117 transitions. Word has length 152 [2020-09-25 04:17:50,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:17:50,753 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 117 transitions. [2020-09-25 04:17:50,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 04:17:50,753 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 117 transitions. [2020-09-25 04:17:50,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 04:17:50,756 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:17:50,756 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:17:50,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 04:17:50,757 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:17:50,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:17:50,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1375329431, now seen corresponding path program 14 times [2020-09-25 04:17:50,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:17:50,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124959400] [2020-09-25 04:17:50,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:17:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:50,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:52,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:52,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 04:17:52,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:52,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1402 [2020-09-25 04:17:52,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:52,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:52,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 04:17:52,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:17:52,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-09-25 04:17:52,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:52,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:17:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:52,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:52,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:52,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:17:52,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:52,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:17:52,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:52,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:52,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:17:52,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:52,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:17:52,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:52,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:17:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:52,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:53,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:53,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-09-25 04:17:53,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:53,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1189 [2020-09-25 04:17:53,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:53,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:53,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 04:17:53,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:53,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-09-25 04:17:53,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:53,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:53,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:54,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:54,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-09-25 04:17:54,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:54,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1107 [2020-09-25 04:17:54,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:54,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:54,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 04:17:54,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:54,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-09-25 04:17:54,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:54,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:54,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:55,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:55,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 04:17:55,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:55,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 948 [2020-09-25 04:17:55,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:55,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:55,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 04:17:55,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:55,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-25 04:17:55,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:55,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:55,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:56,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:56,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 04:17:56,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:56,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 794 [2020-09-25 04:17:56,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:56,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:56,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 04:17:56,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:56,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-25 04:17:56,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:56,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:56,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:57,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:57,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 04:17:57,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:57,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 658 [2020-09-25 04:17:57,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:57,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:57,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 04:17:57,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:57,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 04:17:57,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:57,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:57,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:57,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:57,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 04:17:57,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:57,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 554 [2020-09-25 04:17:57,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:57,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:57,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 04:17:57,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:57,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 04:17:57,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:57,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:57,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:58,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:58,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 04:17:58,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:58,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-09-25 04:17:58,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:58,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:58,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 04:17:58,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:58,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 04:17:58,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:58,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:58,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:58,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:58,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 04:17:58,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:58,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-09-25 04:17:58,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:58,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:58,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:17:58,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:58,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 04:17:58,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:58,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:58,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:58,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:58,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 04:17:58,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:58,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-25 04:17:58,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:58,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:17:58,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:58,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 04:17:58,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:58,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:59,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:59,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:59,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 04:17:59,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:59,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 04:17:59,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:59,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:17:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:17:59,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:59,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:59,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:59,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:59,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 04:17:59,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:59,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-25 04:17:59,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:59,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:59,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:17:59,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:59,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 04:17:59,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:59,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:59,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:59,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:59,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 04:17:59,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:59,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 04:17:59,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:59,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:17:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 04:17:59,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:59,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:59,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:59,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:59,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 04:17:59,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:59,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 04:17:59,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:59,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:17:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:59,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:17:59,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:17:59,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:59,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:59,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:59,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 04:17:59,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:59,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 04:17:59,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:59,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:59,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:17:59,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:59,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 04:17:59,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:59,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:17:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:17:59,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:17:59,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:17:59,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:17:59,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:17:59,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:17:59,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:17:59,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:17:59,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:17:59,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:17:59,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:17:59,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:17:59,882 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 57 proven. 528 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2020-09-25 04:17:59,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [124959400] [2020-09-25 04:17:59,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:17:59,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 04:17:59,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116496386] [2020-09-25 04:17:59,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 04:17:59,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:17:59,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 04:17:59,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2020-09-25 04:17:59,884 INFO L87 Difference]: Start difference. First operand 109 states and 117 transitions. Second operand 20 states. [2020-09-25 04:18:00,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:18:00,214 INFO L93 Difference]: Finished difference Result 120 states and 128 transitions. [2020-09-25 04:18:00,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 04:18:00,215 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 162 [2020-09-25 04:18:00,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:18:00,216 INFO L225 Difference]: With dead ends: 120 [2020-09-25 04:18:00,216 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 04:18:00,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=428, Invalid=762, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 04:18:00,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 04:18:00,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-09-25 04:18:00,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-25 04:18:00,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 122 transitions. [2020-09-25 04:18:00,228 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 122 transitions. Word has length 162 [2020-09-25 04:18:00,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:18:00,229 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 122 transitions. [2020-09-25 04:18:00,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 04:18:00,229 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 122 transitions. [2020-09-25 04:18:00,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 04:18:00,233 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:18:00,233 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:18:00,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 04:18:00,234 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:18:00,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:18:00,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1446025795, now seen corresponding path program 15 times [2020-09-25 04:18:00,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:18:00,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687517015] [2020-09-25 04:18:00,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:18:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:18:00,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:18:01,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:18:01,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 04:18:01,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:18:01,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1575 [2020-09-25 04:18:01,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:18:01,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:18:01,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 04:18:01,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:18:01,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 192 [2020-09-25 04:18:01,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:18:01,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:18:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:18:01,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:18:01,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:18:01,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:18:01,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:18:01,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:18:01,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:18:01,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:18:01,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:18:01,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:18:01,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:18:01,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:18:01,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 04:18:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:18:01,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:18:03,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:18:03,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 04:18:03,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:18:03,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1373 [2020-09-25 04:18:03,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:18:03,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:18:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 04:18:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:18:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-09-25 04:18:03,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:18:03,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:18:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:18:03,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:18:04,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:18:04,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-09-25 04:18:04,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:18:04,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1242 [2020-09-25 04:18:04,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:18:04,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:18:04,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-25 04:18:04,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:18:04,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-09-25 04:18:04,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:18:04,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:18:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:18:04,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking...