/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=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i20_o20-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:37:14,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:37:14,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:37:14,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:37:14,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:37:14,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:37:14,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:37:14,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:37:14,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:37:14,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:37:14,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:37:14,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:37:14,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:37:14,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:37:14,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:37:14,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:37:14,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:37:14,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:37:14,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:37:14,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:37:14,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:37:14,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:37:14,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:37:14,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:37:14,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:37:14,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:37:14,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:37:14,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:37:14,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:37:14,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:37:14,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:37:14,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:37:14,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:37:14,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:37:14,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:37:14,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:37:14,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:37:14,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:37:14,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:37:14,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:37:14,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:37:14,712 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 06:37:14,769 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:37:14,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:37:14,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:37:14,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:37:14,772 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:37:14,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:37:14,772 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:37:14,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:37:14,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:37:14,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:37:14,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:37:14,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:37:14,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:37:14,775 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:37:14,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:37:14,775 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:37:14,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:37:14,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:37:14,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:37:14,776 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:37:14,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:37:14,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:37:14,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:37:14,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:37:14,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:37:14,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:37:14,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:37:14,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:37:14,779 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:37:14,779 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true; [2020-09-25 06:37:15,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:37:15,321 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:37:15,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:37:15,331 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:37:15,331 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:37:15,332 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i20_o20-1.c [2020-09-25 06:37:15,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc6851606/ae75ef465e464c9b9c34c670cd727979/FLAG9f9c801b3 [2020-09-25 06:37:15,950 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:37:15,951 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i20_o20-1.c [2020-09-25 06:37:15,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc6851606/ae75ef465e464c9b9c34c670cd727979/FLAG9f9c801b3 [2020-09-25 06:37:16,293 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc6851606/ae75ef465e464c9b9c34c670cd727979 [2020-09-25 06:37:16,306 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:37:16,311 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:37:16,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:37:16,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:37:16,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:37:16,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:37:16" (1/1) ... [2020-09-25 06:37:16,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a7d2fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:37:16, skipping insertion in model container [2020-09-25 06:37:16,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:37:16" (1/1) ... [2020-09-25 06:37:16,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:37:16,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:37:16,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:37:16,572 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:37:16,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:37:16,609 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:37:16,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:37:16 WrapperNode [2020-09-25 06:37:16,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:37:16,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:37:16,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:37:16,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:37:16,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:37:16" (1/1) ... [2020-09-25 06:37:16,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:37:16" (1/1) ... [2020-09-25 06:37:16,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:37:16" (1/1) ... [2020-09-25 06:37:16,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:37:16" (1/1) ... [2020-09-25 06:37:16,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:37:16" (1/1) ... [2020-09-25 06:37:16,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:37:16" (1/1) ... [2020-09-25 06:37:16,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:37:16" (1/1) ... [2020-09-25 06:37:16,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:37:16,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:37:16,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:37:16,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:37:16,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:37:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:37:16,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:37:16,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:37:16,796 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 06:37:16,796 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:37:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:37:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:37:16,796 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 06:37:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:37:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:37:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:37:16,984 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:37:16,985 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 06:37:16,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:37:16 BoogieIcfgContainer [2020-09-25 06:37:16,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:37:16,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:37:16,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:37:16,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:37:16,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:37:16" (1/3) ... [2020-09-25 06:37:16,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2013459c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:37:16, skipping insertion in model container [2020-09-25 06:37:16,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:37:16" (2/3) ... [2020-09-25 06:37:16,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2013459c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:37:16, skipping insertion in model container [2020-09-25 06:37:16,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:37:16" (3/3) ... [2020-09-25 06:37:17,001 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i20_o20-1.c [2020-09-25 06:37:17,015 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:37:17,029 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:37:17,055 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:37:17,092 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:37:17,092 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:37:17,092 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:37:17,092 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:37:17,092 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:37:17,093 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:37:17,093 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:37:17,093 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:37:17,122 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-25 06:37:17,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 06:37:17,134 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:37:17,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:37:17,136 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:37:17,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:37:17,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-09-25 06:37:17,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:37:17,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366044417] [2020-09-25 06:37:17,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:37:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:17,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:17,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:17,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:37:17,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:17,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 06:37:17,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:17,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:17,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:37:17,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:37:17,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:37:17,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:17,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:37:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:17,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:17,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:17,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:37:17,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:17,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:37:17,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:17,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:17,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:17,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:17,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:17,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:17,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:37:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:17,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:17,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:17,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:37:17,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:17,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 06:37:17,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:17,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:17,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:37:17,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:37:17,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:37:17,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:17,482 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 06:37:17,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366044417] [2020-09-25 06:37:17,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:37:17,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:37:17,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238187446] [2020-09-25 06:37:17,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:37:17,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:37:17,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:37:17,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:37:17,516 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-25 06:37:17,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:37:17,613 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 06:37:17,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:37:17,615 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 06:37:17,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:37:17,628 INFO L225 Difference]: With dead ends: 37 [2020-09-25 06:37:17,629 INFO L226 Difference]: Without dead ends: 23 [2020-09-25 06:37:17,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:37:17,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-25 06:37:17,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-25 06:37:17,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-25 06:37:17,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-25 06:37:17,684 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-09-25 06:37:17,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:37:17,685 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-25 06:37:17,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:37:17,685 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-25 06:37:17,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 06:37:17,689 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:37:17,689 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:37:17,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:37:17,690 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:37:17,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:37:17,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times [2020-09-25 06:37:17,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:37:17,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214668209] [2020-09-25 06:37:17,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:37:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:17,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:17,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:17,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 06:37:17,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:17,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 06:37:17,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:17,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:17,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:37:17,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:37:17,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:37:17,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:17,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:37:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:17,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:17,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:17,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:37:17,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:17,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:37:17,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:17,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:17,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:17,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:17,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:17,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:37:17,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:37:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:17,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:18,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:18,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:37:18,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:18,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 06:37:18,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:18,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:18,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:37:18,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:37:18,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 06:37:18,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:18,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:18,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:18,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:18,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:18,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:37:18,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:18,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:37:18,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:18,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:18,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:37:18,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:18,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:37:18,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:18,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 06:37:18,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214668209] [2020-09-25 06:37:18,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:37:18,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:37:18,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121580945] [2020-09-25 06:37:18,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:37:18,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:37:18,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:37:18,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:37:18,207 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-09-25 06:37:18,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:37:18,268 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-25 06:37:18,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:37:18,268 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-25 06:37:18,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:37:18,270 INFO L225 Difference]: With dead ends: 34 [2020-09-25 06:37:18,270 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 06:37:18,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:37:18,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 06:37:18,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 06:37:18,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 06:37:18,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-25 06:37:18,280 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2020-09-25 06:37:18,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:37:18,280 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-25 06:37:18,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:37:18,281 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-25 06:37:18,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 06:37:18,282 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:37:18,283 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:37:18,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:37:18,283 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:37:18,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:37:18,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times [2020-09-25 06:37:18,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:37:18,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238996614] [2020-09-25 06:37:18,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:37:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:18,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:18,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:18,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 06:37:18,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:18,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-25 06:37:18,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:18,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:18,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:37:18,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:37:18,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:37:18,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:18,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:37:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:18,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:18,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:18,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:37:18,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:18,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:37:18,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:18,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:18,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:18,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:18,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:18,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:18,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:37:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:18,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:18,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:18,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 06:37:18,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:18,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 06:37:18,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:18,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:18,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:37:18,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:37:18,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 06:37:18,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:18,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:18,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:18,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:18,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:37:18,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:18,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 06:37:18,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:18,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:18,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:37:18,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:18,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:37:18,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 06:37:18,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:18,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:18,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:18,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:37:18,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:18,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 06:37:18,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:18,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:18,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:37:18,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:18,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:37:18,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:18,906 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:37:18,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238996614] [2020-09-25 06:37:18,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:37:18,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 06:37:18,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586292862] [2020-09-25 06:37:18,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:37:18,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:37:18,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:37:18,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:37:18,911 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 8 states. [2020-09-25 06:37:18,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:37:18,990 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 06:37:18,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:37:18,991 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-09-25 06:37:18,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:37:18,993 INFO L225 Difference]: With dead ends: 39 [2020-09-25 06:37:18,993 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 06:37:18,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:37:18,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 06:37:19,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-25 06:37:19,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-25 06:37:19,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-25 06:37:19,002 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32 [2020-09-25 06:37:19,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:37:19,002 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-25 06:37:19,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:37:19,002 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-25 06:37:19,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 06:37:19,004 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:37:19,004 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:37:19,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:37:19,005 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:37:19,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:37:19,005 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times [2020-09-25 06:37:19,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:37:19,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253445584] [2020-09-25 06:37:19,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:37:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:19,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:19,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:19,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 06:37:19,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:19,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-25 06:37:19,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:19,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:19,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 06:37:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:37:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:37:19,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:19,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:37:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:19,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:19,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:19,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:37:19,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:19,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:37:19,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:19,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:19,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:19,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:19,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:19,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:19,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:37:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:19,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:19,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:19,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:37:19,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:19,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 06:37:19,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:19,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:19,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 06:37:19,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:37:19,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 06:37:19,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:19,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:19,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:19,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:19,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 06:37:19,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:19,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 06:37:19,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:19,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 06:37:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:37:19,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:19,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:19,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:19,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:19,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:37:19,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:19,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 06:37:19,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:19,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:19,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:37:19,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:19,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:37:19,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:19,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:19,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:19,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:19,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:37:19,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:19,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:37:19,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:19,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:19,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:37:19,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:19,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:37:19,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:19,596 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 06:37:19,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253445584] [2020-09-25 06:37:19,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:37:19,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 06:37:19,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118543921] [2020-09-25 06:37:19,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:37:19,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:37:19,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:37:19,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:37:19,600 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 9 states. [2020-09-25 06:37:19,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:37:19,696 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-09-25 06:37:19,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:37:19,697 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2020-09-25 06:37:19,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:37:19,698 INFO L225 Difference]: With dead ends: 44 [2020-09-25 06:37:19,699 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 06:37:19,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 06:37:19,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 06:37:19,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 06:37:19,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 06:37:19,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 06:37:19,707 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40 [2020-09-25 06:37:19,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:37:19,707 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 06:37:19,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:37:19,707 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 06:37:19,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 06:37:19,711 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:37:19,711 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:37:19,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:37:19,712 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:37:19,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:37:19,712 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times [2020-09-25 06:37:19,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:37:19,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [912900814] [2020-09-25 06:37:19,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:37:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:19,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:19,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:19,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 06:37:19,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:19,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-25 06:37:19,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:19,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:19,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 06:37:19,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:37:19,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 06:37:19,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:19,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:37:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:20,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:20,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:20,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:37:20,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:20,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:37:20,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:20,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:20,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:20,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:20,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:20,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:20,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:37:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:20,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:20,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:20,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:37:20,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:20,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-25 06:37:20,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:20,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:20,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 06:37:20,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:37:20,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 06:37:20,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:20,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:20,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:20,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:20,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:37:20,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:20,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-25 06:37:20,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:20,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:20,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:37:20,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:20,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:37:20,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:20,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:20,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:20,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:20,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 06:37:20,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:20,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 06:37:20,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:20,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:20,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 06:37:20,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:20,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:37:20,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:20,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:20,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:20,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:20,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:37:20,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:20,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 06:37:20,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:20,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:37:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:37:20,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:20,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:20,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:20,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:20,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:37:20,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:20,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:37:20,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:20,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:20,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:37:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:20,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:37:20,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:20,742 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 06:37:20,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [912900814] [2020-09-25 06:37:20,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:37:20,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 06:37:20,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766764013] [2020-09-25 06:37:20,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:37:20,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:37:20,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:37:20,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:37:20,745 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 10 states. [2020-09-25 06:37:20,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:37:20,893 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-25 06:37:20,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:37:20,894 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2020-09-25 06:37:20,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:37:20,896 INFO L225 Difference]: With dead ends: 49 [2020-09-25 06:37:20,896 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 06:37:20,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 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 06:37:20,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 06:37:20,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-25 06:37:20,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 06:37:20,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-25 06:37:20,905 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48 [2020-09-25 06:37:20,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:37:20,905 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-25 06:37:20,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:37:20,906 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-25 06:37:20,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 06:37:20,907 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:37:20,908 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:37:20,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:37:20,908 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:37:20,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:37:20,909 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times [2020-09-25 06:37:20,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:37:20,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844425821] [2020-09-25 06:37:20,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:37:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:20,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:21,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:21,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 06:37:21,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:21,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325 [2020-09-25 06:37:21,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:21,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:21,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 06:37:21,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:37:21,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 06:37:21,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:21,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:37:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:21,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:21,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:21,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:37:21,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:21,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:37:21,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:21,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:21,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:21,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:21,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:21,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:21,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:37:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:21,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:21,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:21,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 06:37:21,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:21,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 06:37:21,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:21,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:21,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 06:37:21,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:37:21,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 06:37:21,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:21,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:21,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:21,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:21,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:37:21,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:21,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-25 06:37:21,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:21,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:21,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 06:37:21,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:21,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 06:37:21,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:21,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:21,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:21,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:21,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:37:21,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:21,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-25 06:37:21,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:21,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:21,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:37:21,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:21,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:37:21,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:22,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:22,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:22,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:22,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 06:37:22,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:22,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 06:37:22,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:22,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:22,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 06:37:22,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:22,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:37:22,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:22,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:22,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:22,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:22,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:37:22,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:22,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 06:37:22,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:22,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:22,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:37:22,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:22,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:37:22,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:22,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:22,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:22,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:22,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:37:22,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:22,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:37:22,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:22,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:22,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:37:22,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:22,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:37:22,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:22,301 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 62 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 06:37:22,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844425821] [2020-09-25 06:37:22,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:37:22,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 06:37:22,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653988445] [2020-09-25 06:37:22,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 06:37:22,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:37:22,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 06:37:22,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:37:22,304 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 11 states. [2020-09-25 06:37:22,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:37:22,413 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-09-25 06:37:22,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:37:22,413 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-09-25 06:37:22,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:37:22,415 INFO L225 Difference]: With dead ends: 54 [2020-09-25 06:37:22,415 INFO L226 Difference]: Without dead ends: 48 [2020-09-25 06:37:22,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 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 06:37:22,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-25 06:37:22,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-25 06:37:22,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-25 06:37:22,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-25 06:37:22,423 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56 [2020-09-25 06:37:22,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:37:22,424 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-25 06:37:22,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 06:37:22,424 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-25 06:37:22,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 06:37:22,425 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:37:22,425 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:37:22,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:37:22,426 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:37:22,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:37:22,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times [2020-09-25 06:37:22,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:37:22,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949701213] [2020-09-25 06:37:22,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:37:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:22,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:22,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:22,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:37:22,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:22,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-09-25 06:37:22,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:22,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:22,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 06:37:22,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:37:22,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 06:37:22,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:22,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:37:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:22,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:22,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:22,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:37:22,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:22,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:37:22,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:22,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:22,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:22,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:22,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:22,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:22,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:37:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:22,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:23,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:23,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 06:37:23,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:23,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-09-25 06:37:23,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:23,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 06:37:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:37:23,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 06:37:23,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:23,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:23,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:23,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:23,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 06:37:23,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:23,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-25 06:37:23,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:23,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:23,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 06:37:23,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:23,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 06:37:23,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:23,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:23,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:23,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:23,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:37:23,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:23,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 06:37:23,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:23,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:23,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 06:37:23,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:23,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 06:37:23,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:23,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:23,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:23,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:23,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:37:23,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:23,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 06:37:23,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:23,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:37:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:23,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:37:23,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:23,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:23,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:24,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:24,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 06:37:24,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:24,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 06:37:24,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:24,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:24,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 06:37:24,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:24,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:37:24,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:24,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:24,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:24,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:24,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:37:24,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:24,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 06:37:24,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:24,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:24,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:37:24,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:24,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:37:24,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:24,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:24,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:24,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:24,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:37:24,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:24,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:37:24,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:24,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:24,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:37:24,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:24,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:37:24,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:24,267 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 10 proven. 103 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-09-25 06:37:24,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949701213] [2020-09-25 06:37:24,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:37:24,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 06:37:24,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653001858] [2020-09-25 06:37:24,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 06:37:24,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:37:24,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 06:37:24,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-25 06:37:24,273 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 13 states. [2020-09-25 06:37:24,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:37:24,434 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 06:37:24,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:37:24,435 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2020-09-25 06:37:24,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:37:24,436 INFO L225 Difference]: With dead ends: 59 [2020-09-25 06:37:24,437 INFO L226 Difference]: Without dead ends: 53 [2020-09-25 06:37:24,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=247, Unknown=0, NotChecked=0, Total=380 [2020-09-25 06:37:24,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-25 06:37:24,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-25 06:37:24,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 06:37:24,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-09-25 06:37:24,444 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 64 [2020-09-25 06:37:24,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:37:24,445 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-09-25 06:37:24,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 06:37:24,445 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-09-25 06:37:24,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 06:37:24,446 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:37:24,447 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:37:24,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:37:24,447 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:37:24,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:37:24,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1977618599, now seen corresponding path program 7 times [2020-09-25 06:37:24,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:37:24,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642119584] [2020-09-25 06:37:24,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:37:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:24,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:24,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:24,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 06:37:24,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:24,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-09-25 06:37:24,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:24,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 06:37:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:37:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 06:37:24,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:24,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:37:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:24,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:24,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:24,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:37:24,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:24,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:37:24,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:24,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:24,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:24,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:24,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:24,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:24,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:37:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:24,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:25,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:25,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 06:37:25,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:25,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 428 [2020-09-25 06:37:25,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:25,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:25,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 06:37:25,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:37:25,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 06:37:25,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:25,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:25,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:25,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:25,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 06:37:25,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:25,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-09-25 06:37:25,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:25,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:25,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 06:37:25,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:25,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 06:37:25,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:25,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:25,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:26,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:26,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 06:37:26,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:26,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-25 06:37:26,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:26,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:26,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 06:37:26,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:26,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 06:37:26,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:26,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:26,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:26,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:26,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:37:26,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:26,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 06:37:26,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:26,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:26,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 06:37:26,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:26,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 06:37:26,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:26,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:26,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:26,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:26,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:37:26,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:26,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 06:37:26,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:26,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:26,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:37:26,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:37:26,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:26,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:26,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:26,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:26,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 06:37:26,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:26,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 06:37:26,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:26,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 06:37:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:26,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:37:26,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:26,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:26,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:26,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:26,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:37:26,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:26,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 06:37:26,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:26,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:26,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:37:26,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:26,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:37:26,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:26,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:26,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:26,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:26,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:37:26,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:26,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:37:26,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:26,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:26,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:37:26,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:26,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:37:26,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:26,744 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 16 proven. 131 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-09-25 06:37:26,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642119584] [2020-09-25 06:37:26,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:37:26,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 06:37:26,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534598674] [2020-09-25 06:37:26,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 06:37:26,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:37:26,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 06:37:26,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 06:37:26,748 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 13 states. [2020-09-25 06:37:26,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:37:26,892 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-25 06:37:26,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:37:26,893 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2020-09-25 06:37:26,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:37:26,895 INFO L225 Difference]: With dead ends: 64 [2020-09-25 06:37:26,898 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 06:37:26,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 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 06:37:26,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 06:37:26,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 06:37:26,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 06:37:26,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 06:37:26,910 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 72 [2020-09-25 06:37:26,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:37:26,911 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 06:37:26,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 06:37:26,911 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 06:37:26,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 06:37:26,925 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:37:26,925 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:37:26,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:37:26,926 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:37:26,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:37:26,926 INFO L82 PathProgramCache]: Analyzing trace with hash 555623729, now seen corresponding path program 8 times [2020-09-25 06:37:26,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:37:26,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [243917973] [2020-09-25 06:37:26,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:37:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:26,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:27,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:27,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 06:37:27,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:27,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 538 [2020-09-25 06:37:27,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:27,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:27,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 06:37:27,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:37:27,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 06:37:27,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:27,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:37:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:27,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:27,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:27,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:37:27,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:27,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:37:27,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:27,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:27,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:27,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:27,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:27,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:27,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:37:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:27,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:27,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:27,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 06:37:27,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:27,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 466 [2020-09-25 06:37:27,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:27,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:27,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 06:37:27,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:37:27,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 06:37:27,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:28,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:28,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:28,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:28,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 06:37:28,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:28,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-09-25 06:37:28,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:28,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 06:37:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 06:37:28,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:28,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:28,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:28,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:28,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 06:37:28,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:28,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-09-25 06:37:28,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:28,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 06:37:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 06:37:28,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:28,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:28,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:29,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:29,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 06:37:29,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:29,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-25 06:37:29,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:29,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:29,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 06:37:29,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:29,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 06:37:29,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:29,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:29,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:29,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:29,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:37:29,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:29,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-25 06:37:29,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:29,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:29,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 06:37:29,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:29,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 06:37:29,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:29,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:29,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:29,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:29,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:37:29,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:29,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 06:37:29,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:29,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:29,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:37:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:37:29,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:29,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:29,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:29,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:29,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 06:37:29,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:29,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 06:37:29,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:29,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:29,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 06:37:29,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:29,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:37:29,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:29,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:29,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:29,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:29,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:37:29,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:29,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 06:37:29,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:29,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:29,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:37:29,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:29,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:37:29,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:29,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:29,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:29,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:29,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:37:29,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:29,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 06:37:29,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:29,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:29,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:37:29,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:29,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:37:29,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:29,833 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 12 proven. 184 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-25 06:37:29,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [243917973] [2020-09-25 06:37:29,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:37:29,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 06:37:29,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800545147] [2020-09-25 06:37:29,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 06:37:29,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:37:29,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 06:37:29,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-09-25 06:37:29,836 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 15 states. [2020-09-25 06:37:29,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:37:29,983 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-25 06:37:29,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 06:37:29,983 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 80 [2020-09-25 06:37:29,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:37:29,985 INFO L225 Difference]: With dead ends: 69 [2020-09-25 06:37:29,985 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 06:37:29,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=358, Unknown=0, NotChecked=0, Total=552 [2020-09-25 06:37:29,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 06:37:29,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-25 06:37:29,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 06:37:29,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-25 06:37:29,993 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2020-09-25 06:37:29,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:37:29,993 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-25 06:37:29,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 06:37:29,994 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-25 06:37:29,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 06:37:29,995 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:37:29,995 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:37:29,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 06:37:29,995 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:37:29,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:37:29,996 INFO L82 PathProgramCache]: Analyzing trace with hash 777699815, now seen corresponding path program 9 times [2020-09-25 06:37:29,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:37:29,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1671701765] [2020-09-25 06:37:29,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:37:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:30,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:30,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:30,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 06:37:30,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:30,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 604 [2020-09-25 06:37:30,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:30,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 06:37:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:37:30,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 06:37:30,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:30,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:37:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:30,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:30,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:30,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:37:30,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:30,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:37:30,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:30,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:30,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:30,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:30,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:30,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:30,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:37:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:30,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:31,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:31,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 06:37:31,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:31,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 594 [2020-09-25 06:37:31,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:31,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:31,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 06:37:31,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:37:31,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 06:37:31,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:31,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:31,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:31,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:31,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 06:37:31,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:31,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-09-25 06:37:31,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:31,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:31,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 06:37:31,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:31,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 06:37:31,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:31,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:31,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:32,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:32,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 06:37:32,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:32,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-09-25 06:37:32,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:32,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:32,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 06:37:32,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:32,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 06:37:32,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:32,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:32,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:32,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:32,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 06:37:32,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:32,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-09-25 06:37:32,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:32,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 06:37:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 06:37:32,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:32,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:32,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:32,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:32,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 06:37:32,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:32,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 06:37:32,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:32,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:32,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 06:37:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 06:37:32,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 06:37:32,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:32,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:33,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:33,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:37:33,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:33,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-25 06:37:33,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:33,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:33,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 06:37:33,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:33,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 06:37:33,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:33,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:33,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:33,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:33,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:37:33,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:33,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 06:37:33,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:33,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:33,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:37:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:37:33,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:33,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:33,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:33,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:33,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 06:37:33,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:33,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 06:37:33,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:33,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:33,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 06:37:33,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:33,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:37:33,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:33,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:33,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:33,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:33,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:37:33,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:33,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 06:37:33,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:33,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:37:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:33,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:37:33,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:33,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:33,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:33,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:33,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:37:33,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:33,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:37:33,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:33,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:33,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:37:33,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:33,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:37:33,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:33,589 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 26 proven. 214 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-25 06:37:33,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1671701765] [2020-09-25 06:37:33,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:37:33,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 06:37:33,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113901772] [2020-09-25 06:37:33,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 06:37:33,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:37:33,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 06:37:33,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 06:37:33,593 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 15 states. [2020-09-25 06:37:33,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:37:33,819 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2020-09-25 06:37:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 06:37:33,820 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 88 [2020-09-25 06:37:33,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:37:33,822 INFO L225 Difference]: With dead ends: 74 [2020-09-25 06:37:33,822 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 06:37:33,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 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 06:37:33,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 06:37:33,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-25 06:37:33,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 06:37:33,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-09-25 06:37:33,844 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 88 [2020-09-25 06:37:33,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:37:33,848 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-09-25 06:37:33,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 06:37:33,849 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-09-25 06:37:33,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-25 06:37:33,851 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:37:33,851 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:37:33,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 06:37:33,851 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:37:33,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:37:33,857 INFO L82 PathProgramCache]: Analyzing trace with hash 2145915377, now seen corresponding path program 10 times [2020-09-25 06:37:33,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:37:33,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [165229505] [2020-09-25 06:37:33,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:37:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:33,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:34,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:34,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 06:37:34,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:34,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 778 [2020-09-25 06:37:34,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:34,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:34,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 06:37:34,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:37:34,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 06:37:34,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:34,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:37:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:34,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:34,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:34,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:37:34,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:34,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:37:34,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:34,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:34,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:34,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:34,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:34,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:34,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:37:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:34,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:35,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:35,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 06:37:35,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:35,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-09-25 06:37:35,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:35,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:35,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 06:37:35,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:37:35,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 06:37:35,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:35,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:35,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:36,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:36,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 06:37:36,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:36,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 590 [2020-09-25 06:37:36,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:36,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:36,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 06:37:36,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 06:37:36,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:36,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:36,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:36,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:36,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 06:37:36,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:36,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 503 [2020-09-25 06:37:36,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:36,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:36,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 06:37:36,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:36,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 06:37:36,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:36,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:36,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:36,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:36,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 06:37:36,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:36,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-09-25 06:37:36,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:36,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:36,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 06:37:36,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:36,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 06:37:36,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:37,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:37,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:37,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:37,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 06:37:37,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:37,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-09-25 06:37:37,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:37,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:37,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 06:37:37,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:37,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 06:37:37,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:37,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:37,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:37,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:37,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 06:37:37,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:37,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 06:37:37,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:37,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:37,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 06:37:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 06:37:37,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:37,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:37,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:37,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:37,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:37:37,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-25 06:37:37,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:37,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 06:37:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 06:37:37,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:37,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:37,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:37,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:37,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:37:37,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:37,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 06:37:37,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:37,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:37,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:37:37,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:37,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:37:37,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:38,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:38,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:38,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:38,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 06:37:38,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:38,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 06:37:38,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:38,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:38,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 06:37:38,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:38,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:37:38,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:38,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:38,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:38,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:38,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:37:38,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:38,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 06:37:38,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:38,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:38,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:37:38,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:38,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:37:38,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:38,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:38,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:38,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:38,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:37:38,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:38,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:37:38,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:38,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:37:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:37:38,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:38,257 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 27 proven. 267 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-09-25 06:37:38,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [165229505] [2020-09-25 06:37:38,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:37:38,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 06:37:38,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918835952] [2020-09-25 06:37:38,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 06:37:38,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:37:38,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 06:37:38,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-25 06:37:38,260 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 16 states. [2020-09-25 06:37:38,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:37:38,452 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-25 06:37:38,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:37:38,453 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 96 [2020-09-25 06:37:38,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:37:38,454 INFO L225 Difference]: With dead ends: 79 [2020-09-25 06:37:38,454 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 06:37:38,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 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 06:37:38,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 06:37:38,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-25 06:37:38,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 06:37:38,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-09-25 06:37:38,474 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 96 [2020-09-25 06:37:38,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:37:38,474 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-09-25 06:37:38,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 06:37:38,474 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-09-25 06:37:38,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 06:37:38,475 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:37:38,475 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:37:38,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 06:37:38,476 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:37:38,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:37:38,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1180214055, now seen corresponding path program 11 times [2020-09-25 06:37:38,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:37:38,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65362552] [2020-09-25 06:37:38,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:37:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:38,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:39,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:39,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 06:37:39,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:39,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 755 [2020-09-25 06:37:39,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:39,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:39,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 06:37:39,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:37:39,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 06:37:39,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:39,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:37:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:39,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:39,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:39,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:37:39,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:39,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:37:39,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:39,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:39,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:39,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:39,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:39,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:37:39,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:37:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:39,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:40,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:40,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 06:37:40,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:40,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 707 [2020-09-25 06:37:40,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:40,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:40,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 06:37:40,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:37:40,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 06:37:40,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:40,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:40,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:40,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:40,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 06:37:40,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:40,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 647 [2020-09-25 06:37:40,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:40,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 06:37:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 06:37:40,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:40,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:40,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:41,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:41,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 06:37:41,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:41,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-09-25 06:37:41,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:41,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 06:37:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 06:37:41,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:41,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:41,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:41,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:41,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 06:37:41,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:41,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-09-25 06:37:41,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:41,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 06:37:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 06:37:41,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:41,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:41,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:42,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:42,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 06:37:42,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:42,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-09-25 06:37:42,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:42,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:42,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 06:37:42,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:42,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 06:37:42,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:42,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:42,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:42,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:42,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 06:37:42,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:42,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-25 06:37:42,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:42,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 06:37:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 06:37:42,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:42,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:42,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:42,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:42,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 06:37:42,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:42,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 06:37:42,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:42,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:42,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 06:37:42,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:42,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 06:37:42,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:42,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:42,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:42,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:42,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:37:42,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:42,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-25 06:37:42,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:42,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:42,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 06:37:42,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:42,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 06:37:42,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:42,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:42,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:43,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:43,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:37:43,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:43,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 06:37:43,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:43,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:43,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:37:43,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:43,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:37:43,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:43,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:43,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:43,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:43,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 06:37:43,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:43,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 06:37:43,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:43,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:43,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 06:37:43,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:43,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:37:43,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:43,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:43,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:43,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:43,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:37:43,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:43,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 06:37:43,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:43,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:43,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:37:43,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:43,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:37:43,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:43,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:43,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:43,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:43,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:37:43,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:43,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:37:43,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:43,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:43,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:37:43,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:43,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:37:43,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:43,284 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 11 proven. 297 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-09-25 06:37:43,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65362552] [2020-09-25 06:37:43,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:37:43,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 06:37:43,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312326044] [2020-09-25 06:37:43,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 06:37:43,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:37:43,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 06:37:43,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-25 06:37:43,287 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 17 states. [2020-09-25 06:37:43,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:37:43,460 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2020-09-25 06:37:43,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 06:37:43,461 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 104 [2020-09-25 06:37:43,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:37:43,462 INFO L225 Difference]: With dead ends: 84 [2020-09-25 06:37:43,462 INFO L226 Difference]: Without dead ends: 78 [2020-09-25 06:37:43,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-25 06:37:43,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-25 06:37:43,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-25 06:37:43,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 06:37:43,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-09-25 06:37:43,469 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 104 [2020-09-25 06:37:43,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:37:43,469 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-09-25 06:37:43,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 06:37:43,470 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-09-25 06:37:43,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 06:37:43,470 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:37:43,471 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:37:43,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 06:37:43,471 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:37:43,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:37:43,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1287598415, now seen corresponding path program 12 times [2020-09-25 06:37:43,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:37:43,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17878001] [2020-09-25 06:37:43,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:37:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:43,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:44,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:44,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-25 06:37:44,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:44,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 919 [2020-09-25 06:37:44,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:44,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 06:37:44,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:37:44,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 06:37:44,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:44,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:37:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:44,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:44,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:44,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:37:44,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:44,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:37:44,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:44,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:44,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:44,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:44,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:44,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:44,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:37:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:44,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:45,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:45,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 06:37:45,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:45,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 784 [2020-09-25 06:37:45,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:45,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:45,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 06:37:45,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:37:45,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-25 06:37:45,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:45,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:45,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:45,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:45,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 06:37:45,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:45,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 697 [2020-09-25 06:37:45,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:45,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:45,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 06:37:45,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:45,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 06:37:45,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:46,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:46,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:46,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:46,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 06:37:46,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:46,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 536 [2020-09-25 06:37:46,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:46,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:46,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 06:37:46,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:46,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 06:37:46,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:46,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:46,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:47,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:47,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 06:37:47,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:47,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-09-25 06:37:47,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:47,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:47,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 06:37:47,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:47,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 06:37:47,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:47,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:47,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:47,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:47,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 06:37:47,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:47,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-09-25 06:37:47,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:47,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:47,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 06:37:47,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:47,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 06:37:47,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:47,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:47,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:47,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:47,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 06:37:47,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:47,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-09-25 06:37:47,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:47,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:47,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 06:37:47,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:47,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 06:37:47,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:47,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:47,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:48,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:48,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 06:37:48,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:48,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-09-25 06:37:48,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:48,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:48,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 06:37:48,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:48,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 06:37:48,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:48,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:48,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:48,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:48,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 06:37:48,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:48,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 06:37:48,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:48,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:48,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 06:37:48,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:48,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 06:37:48,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:48,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:48,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:48,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:48,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:37:48,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:48,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-25 06:37:48,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:48,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:48,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 06:37:48,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:48,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 06:37:48,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:48,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:48,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:48,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:48,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:37:48,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:48,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 06:37:48,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:48,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:48,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:37:48,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:37:48,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:48,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:48,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:49,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:49,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 06:37:49,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:49,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 06:37:49,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:49,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:49,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 06:37:49,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:49,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:37:49,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:49,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:49,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:49,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:49,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:37:49,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:49,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 06:37:49,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:49,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:49,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:37:49,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:49,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:37:49,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:49,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:49,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:49,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:49,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:37:49,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:49,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:37:49,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:49,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:49,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:37:49,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:49,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:37:49,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:37:49,216 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 22 proven. 374 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-09-25 06:37:49,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17878001] [2020-09-25 06:37:49,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:37:49,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 06:37:49,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969677725] [2020-09-25 06:37:49,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 06:37:49,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:37:49,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 06:37:49,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-25 06:37:49,221 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 18 states. [2020-09-25 06:37:49,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:37:49,434 INFO L93 Difference]: Finished difference Result 89 states and 90 transitions. [2020-09-25 06:37:49,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 06:37:49,435 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 112 [2020-09-25 06:37:49,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:37:49,436 INFO L225 Difference]: With dead ends: 89 [2020-09-25 06:37:49,436 INFO L226 Difference]: Without dead ends: 83 [2020-09-25 06:37:49,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 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 06:37:49,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-25 06:37:49,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-09-25 06:37:49,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-25 06:37:49,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2020-09-25 06:37:49,450 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 112 [2020-09-25 06:37:49,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:37:49,454 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2020-09-25 06:37:49,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 06:37:49,454 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2020-09-25 06:37:49,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-25 06:37:49,455 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:37:49,455 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:37:49,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 06:37:49,458 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:37:49,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:37:49,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1612559463, now seen corresponding path program 13 times [2020-09-25 06:37:49,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:37:49,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577043349] [2020-09-25 06:37:49,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:37:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:49,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:50,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:50,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-25 06:37:50,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:50,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 936 [2020-09-25 06:37:50,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:50,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:50,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 06:37:50,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:37:50,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 06:37:50,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:50,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:37:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:50,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:50,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:50,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:37:50,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:50,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:37:50,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:50,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:50,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:50,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:50,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:37:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:50,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:51,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:51,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 06:37:51,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:51,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 851 [2020-09-25 06:37:51,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:51,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:51,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 06:37:51,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:37:51,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-25 06:37:51,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:51,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:51,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:52,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:52,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 06:37:52,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:52,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 778 [2020-09-25 06:37:52,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:52,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:52,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 06:37:52,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:52,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 06:37:52,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:52,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:52,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:52,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:52,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 06:37:52,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:52,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 767 [2020-09-25 06:37:52,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:52,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 06:37:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 06:37:52,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:52,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:53,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:53,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:53,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 06:37:53,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:53,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-09-25 06:37:53,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:53,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:53,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 06:37:53,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:53,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 06:37:53,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:53,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:53,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:54,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:54,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 06:37:54,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:54,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 477 [2020-09-25 06:37:54,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:54,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:54,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 06:37:54,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:54,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 06:37:54,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:54,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:54,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:54,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:54,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 06:37:54,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:54,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 401 [2020-09-25 06:37:54,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:54,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:54,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 06:37:54,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:54,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 06:37:54,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:54,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:54,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:54,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:54,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 06:37:54,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:54,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-25 06:37:54,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:54,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:54,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 06:37:54,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:54,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 06:37:54,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:54,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:54,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:55,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:55,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 06:37:55,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:55,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 06:37:55,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:55,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 06:37:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 06:37:55,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:55,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:55,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:55,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:55,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 06:37:55,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:55,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-09-25 06:37:55,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:55,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:55,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 06:37:55,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:55,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 06:37:55,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:55,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:55,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:55,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:55,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:37:55,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:55,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 06:37:55,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:55,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:55,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 06:37:55,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:55,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 06:37:55,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:55,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:55,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:55,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:55,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:37:55,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:55,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 06:37:55,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:55,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:55,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:37:55,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:55,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:37:55,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:55,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:55,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:55,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:55,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 06:37:55,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:55,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 06:37:55,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:55,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:55,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 06:37:55,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:55,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:37:55,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:55,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:55,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:55,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:55,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:37:55,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:55,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 06:37:55,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:55,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:55,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:37:55,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:55,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:37:55,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:55,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:55,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:55,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:55,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:37:55,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:55,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:37:55,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:55,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:37:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:55,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:37:55,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:37:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 25 proven. 488 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-09-25 06:37:55,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577043349] [2020-09-25 06:37:55,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:37:55,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 06:37:55,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650756728] [2020-09-25 06:37:55,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 06:37:55,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:37:55,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 06:37:55,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=247, Unknown=0, NotChecked=0, Total=380 [2020-09-25 06:37:55,926 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 20 states. [2020-09-25 06:37:56,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:37:56,215 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-09-25 06:37:56,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 06:37:56,215 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 120 [2020-09-25 06:37:56,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:37:56,216 INFO L225 Difference]: With dead ends: 94 [2020-09-25 06:37:56,217 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 06:37:56,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=399, Invalid=723, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 06:37:56,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 06:37:56,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-09-25 06:37:56,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-25 06:37:56,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 89 transitions. [2020-09-25 06:37:56,222 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 89 transitions. Word has length 120 [2020-09-25 06:37:56,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:37:56,223 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 89 transitions. [2020-09-25 06:37:56,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 06:37:56,223 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 89 transitions. [2020-09-25 06:37:56,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-25 06:37:56,224 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:37:56,224 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:37:56,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 06:37:56,225 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:37:56,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:37:56,225 INFO L82 PathProgramCache]: Analyzing trace with hash 996432753, now seen corresponding path program 14 times [2020-09-25 06:37:56,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:37:56,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318977013] [2020-09-25 06:37:56,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:37:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:56,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:57,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:57,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 06:37:57,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:57,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 971 [2020-09-25 06:37:57,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:57,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:57,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 06:37:57,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:37:57,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 06:37:57,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:57,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:37:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:57,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:57,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:57,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:37:57,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:57,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:37:57,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:57,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:37:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:37:57,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:57,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:37:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:57,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:58,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:58,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 06:37:58,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:58,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 989 [2020-09-25 06:37:58,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:58,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:58,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 06:37:58,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:37:58,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 06:37:58,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:58,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:58,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:59,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:59,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 06:37:59,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:59,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 870 [2020-09-25 06:37:59,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:59,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:59,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 06:37:59,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:59,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 06:37:59,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:37:59,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:37:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:37:59,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:37:59,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:37:59,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 06:37:59,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:37:59,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 770 [2020-09-25 06:37:59,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:37:59,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:37:59,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 06:37:59,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:37:59,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 06:37:59,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:00,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:00,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:00,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:00,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 06:38:00,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:00,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 651 [2020-09-25 06:38:00,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:00,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:00,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 06:38:00,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:00,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 06:38:00,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:00,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:00,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:01,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:01,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 06:38:01,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:01,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 562 [2020-09-25 06:38:01,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:01,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:01,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 06:38:01,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:01,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 06:38:01,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:01,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:01,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:01,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:01,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 06:38:01,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:01,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-09-25 06:38:01,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:01,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:01,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 06:38:01,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:01,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 06:38:01,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:01,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:01,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:02,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:02,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 06:38:02,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:02,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-25 06:38:02,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:02,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 06:38:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 06:38:02,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:02,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:02,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:02,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:02,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 06:38:02,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:02,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-25 06:38:02,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:02,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:02,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 06:38:02,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:02,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 06:38:02,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:02,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:02,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:02,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:02,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 06:38:02,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:02,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 06:38:02,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:02,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 06:38:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 06:38:02,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:02,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:02,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:02,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:02,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 06:38:02,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:02,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 06:38:02,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:02,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:02,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 06:38:02,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:02,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 06:38:02,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:02,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:02,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:03,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:03,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 06:38:03,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:03,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 06:38:03,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:03,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 06:38:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 06:38:03,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:03,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:03,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:03,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:03,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:38:03,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:03,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 06:38:03,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:03,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:03,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 06:38:03,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:03,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:38:03,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-25 06:38:03,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:03,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:03,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:03,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 06:38:03,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:03,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 06:38:03,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:03,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:03,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 06:38:03,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:03,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:38:03,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:03,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:03,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:03,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:03,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 06:38:03,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:03,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 06:38:03,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:03,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:03,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:38:03,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:03,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:38:03,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:03,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:03,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:03,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:03,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:38:03,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:03,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:38:03,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:03,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:03,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:38:03,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:03,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:38:03,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:03,517 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 42 proven. 545 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2020-09-25 06:38:03,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1318977013] [2020-09-25 06:38:03,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:38:03,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 06:38:03,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427280151] [2020-09-25 06:38:03,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 06:38:03,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:38:03,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 06:38:03,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2020-09-25 06:38:03,519 INFO L87 Difference]: Start difference. First operand 88 states and 89 transitions. Second operand 20 states. [2020-09-25 06:38:03,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:38:03,800 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2020-09-25 06:38:03,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 06:38:03,801 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 128 [2020-09-25 06:38:03,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:38:03,802 INFO L225 Difference]: With dead ends: 99 [2020-09-25 06:38:03,802 INFO L226 Difference]: Without dead ends: 93 [2020-09-25 06:38:03,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 32 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 06:38:03,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-25 06:38:03,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-09-25 06:38:03,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 06:38:03,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2020-09-25 06:38:03,808 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 128 [2020-09-25 06:38:03,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:38:03,808 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2020-09-25 06:38:03,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 06:38:03,809 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2020-09-25 06:38:03,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 06:38:03,810 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:03,810 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:38:03,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 06:38:03,811 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:03,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:03,811 INFO L82 PathProgramCache]: Analyzing trace with hash 418248103, now seen corresponding path program 15 times [2020-09-25 06:38:03,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:03,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330420571] [2020-09-25 06:38:03,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:03,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:04,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:04,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 06:38:04,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:04,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1168 [2020-09-25 06:38:04,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:04,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:04,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 06:38:04,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:38:04,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 06:38:04,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:05,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:38:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:05,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:05,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:05,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:38:05,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:05,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:38:05,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:05,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:05,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:05,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:05,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:05,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:05,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:38:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:05,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:06,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:06,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-25 06:38:06,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:06,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1081 [2020-09-25 06:38:06,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:06,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 06:38:06,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:38:06,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-25 06:38:06,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:06,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:06,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:07,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:07,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 06:38:07,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:07,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-09-25 06:38:07,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:07,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:07,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-25 06:38:07,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:07,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-25 06:38:07,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:07,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:07,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:08,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:08,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 06:38:08,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:08,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 872 [2020-09-25 06:38:08,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:08,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 06:38:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 06:38:08,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:08,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:08,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:08,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:08,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 06:38:08,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:08,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 737 [2020-09-25 06:38:08,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:08,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:08,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 06:38:08,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:08,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 06:38:08,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:08,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:08,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:09,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:09,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 06:38:09,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:09,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 690 [2020-09-25 06:38:09,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:09,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:09,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 06:38:09,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:09,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 06:38:09,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:09,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:09,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:10,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:10,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 06:38:10,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:10,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-09-25 06:38:10,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:10,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:10,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 06:38:10,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:10,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 06:38:10,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:10,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:38:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:10,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking...