/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/MultCommutative-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:01:10,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:01:10,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:01:10,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:01:10,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:01:10,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:01:10,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:01:10,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:01:10,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:01:10,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:01:10,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:01:10,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:01:10,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:01:10,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:01:10,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:01:10,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:01:10,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:01:10,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:01:10,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:01:10,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:01:10,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:01:10,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:01:10,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:01:10,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:01:10,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:01:10,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:01:10,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:01:10,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:01:10,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:01:10,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:01:10,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:01:10,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:01:10,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:01:10,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:01:10,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:01:10,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:01:10,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:01:10,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:01:10,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:01:10,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:01:10,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:01:10,179 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 02:01:10,200 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:01:10,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:01:10,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:01:10,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:01:10,202 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:01:10,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:01:10,203 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:01:10,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:01:10,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:01:10,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:01:10,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:01:10,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:01:10,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:01:10,204 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:01:10,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:01:10,205 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:01:10,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:01:10,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:01:10,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:01:10,205 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:01:10,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:01:10,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:01:10,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:01:10,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:01:10,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:01:10,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:01:10,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:01:10,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:01:10,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:01:10,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:01:10,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:01:10,511 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:01:10,518 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:01:10,521 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:01:10,522 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:01:10,522 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/MultCommutative-2.c [2020-10-15 02:01:10,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d739e8241/1c9f70fbc5ea468498c4761845ecd509/FLAGc556a847b [2020-10-15 02:01:11,067 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:01:11,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/MultCommutative-2.c [2020-10-15 02:01:11,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d739e8241/1c9f70fbc5ea468498c4761845ecd509/FLAGc556a847b [2020-10-15 02:01:11,464 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d739e8241/1c9f70fbc5ea468498c4761845ecd509 [2020-10-15 02:01:11,473 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:01:11,475 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:01:11,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:01:11,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:01:11,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:01:11,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:01:11" (1/1) ... [2020-10-15 02:01:11,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:01:11, skipping insertion in model container [2020-10-15 02:01:11,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:01:11" (1/1) ... [2020-10-15 02:01:11,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:01:11,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:01:11,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:01:11,717 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:01:11,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:01:11,749 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:01:11,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:01:11 WrapperNode [2020-10-15 02:01:11,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:01:11,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:01:11,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:01:11,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:01:11,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:01:11" (1/1) ... [2020-10-15 02:01:11,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:01:11" (1/1) ... [2020-10-15 02:01:11,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:01:11" (1/1) ... [2020-10-15 02:01:11,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:01:11" (1/1) ... [2020-10-15 02:01:11,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:01:11" (1/1) ... [2020-10-15 02:01:11,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:01:11" (1/1) ... [2020-10-15 02:01:11,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:01:11" (1/1) ... [2020-10-15 02:01:11,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:01:11,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:01:11,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:01:11,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:01:11,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:01:11" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:01:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:01:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:01:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2020-10-15 02:01:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:01:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:01:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 02:01:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2020-10-15 02:01:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:01:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:01:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:01:12,122 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:01:12,122 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 02:01:12,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:01:12 BoogieIcfgContainer [2020-10-15 02:01:12,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:01:12,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:01:12,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:01:12,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:01:12,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:01:11" (1/3) ... [2020-10-15 02:01:12,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404ee4d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:01:12, skipping insertion in model container [2020-10-15 02:01:12,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:01:11" (2/3) ... [2020-10-15 02:01:12,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404ee4d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:01:12, skipping insertion in model container [2020-10-15 02:01:12,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:01:12" (3/3) ... [2020-10-15 02:01:12,135 INFO L109 eAbstractionObserver]: Analyzing ICFG MultCommutative-2.c [2020-10-15 02:01:12,146 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:01:12,154 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:01:12,169 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:01:12,237 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:01:12,237 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:01:12,237 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:01:12,238 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:01:12,238 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:01:12,238 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:01:12,238 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:01:12,238 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:01:12,261 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-15 02:01:12,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 02:01:12,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:12,277 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:12,277 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:12,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:12,283 INFO L82 PathProgramCache]: Analyzing trace with hash -962219036, now seen corresponding path program 1 times [2020-10-15 02:01:12,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:12,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16591075] [2020-10-15 02:01:12,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:12,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:12,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:12,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:13,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:13,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:01:13,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:01:13,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 756 [2020-10-15 02:01:13,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:13,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:13,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:01:13,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:13,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:01:13,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-15 02:01:13,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:13,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:13,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:13,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:13,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:13,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:13,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:13,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:13,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:13,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:13,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:13,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:13,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:13,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:13,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:13,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:13,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:13,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:01:13,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:13,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:13,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:01:13,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:13,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:13,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:13,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-15 02:01:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:13,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:13,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:13,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:13,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:13,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:01:13,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:13,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:13,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:01:13,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:13,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:01:13,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:13,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-15 02:01:13,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16591075] [2020-10-15 02:01:13,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:13,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-15 02:01:13,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253744801] [2020-10-15 02:01:13,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:01:13,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:13,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:01:13,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:01:13,331 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-10-15 02:01:13,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:13,500 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2020-10-15 02:01:13,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:01:13,502 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-15 02:01:13,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:13,515 INFO L225 Difference]: With dead ends: 42 [2020-10-15 02:01:13,515 INFO L226 Difference]: Without dead ends: 26 [2020-10-15 02:01:13,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:01:13,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-15 02:01:13,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-15 02:01:13,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-15 02:01:13,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2020-10-15 02:01:13,568 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 23 [2020-10-15 02:01:13,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:13,569 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2020-10-15 02:01:13,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:01:13,569 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2020-10-15 02:01:13,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-15 02:01:13,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:13,572 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:13,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:01:13,573 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:13,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:13,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1472914703, now seen corresponding path program 1 times [2020-10-15 02:01:13,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:13,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699880770] [2020-10-15 02:01:13,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:13,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:13,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:13,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-15 02:01:13,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:13,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-15 02:01:13,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:13,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:13,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:01:13,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-15 02:01:13,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:01:13,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:13,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:13,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:13,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:13,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:13,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:13,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:13,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:13,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:13,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:13,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:13,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:13,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:13,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:13,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:13,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:13,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:13,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:13,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:01:13,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:13,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:13,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:13,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:13,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:13,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:13,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:13,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:13,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:13,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:13,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:13,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:01:13,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:13,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:13,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:13,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:13,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:13,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:13,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-15 02:01:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:13,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:13,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:13,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:13,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:13,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:01:13,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:13,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:01:13,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:13,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:13,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 02:01:13,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699880770] [2020-10-15 02:01:13,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:01:13,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:01:13,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674201009] [2020-10-15 02:01:13,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:01:13,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:13,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:01:13,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:01:13,738 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand 5 states. [2020-10-15 02:01:13,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:13,806 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2020-10-15 02:01:13,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:01:13,806 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-10-15 02:01:13,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:13,808 INFO L225 Difference]: With dead ends: 32 [2020-10-15 02:01:13,808 INFO L226 Difference]: Without dead ends: 28 [2020-10-15 02:01:13,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:01:13,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-15 02:01:13,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-15 02:01:13,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-15 02:01:13,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2020-10-15 02:01:13,819 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 30 [2020-10-15 02:01:13,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:13,819 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2020-10-15 02:01:13,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:01:13,819 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2020-10-15 02:01:13,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-15 02:01:13,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:13,821 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:13,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:01:13,822 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:13,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:13,822 INFO L82 PathProgramCache]: Analyzing trace with hash 746268336, now seen corresponding path program 2 times [2020-10-15 02:01:13,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:13,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41908381] [2020-10-15 02:01:13,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:13,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:14,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:14,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 02:01:14,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:14,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-15 02:01:14,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:14,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:14,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:01:14,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:14,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 02:01:14,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:14,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:14,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:14,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:14,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:14,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:14,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:14,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:14,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:14,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:14,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:14,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:14,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:14,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:14,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:14,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:14,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:14,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:14,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-15 02:01:14,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:14,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:14,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:01:14,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:14,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:14,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:14,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:14,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:14,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:14,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:14,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:14,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 02:01:14,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:14,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:14,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:14,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:14,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:14,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:14,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-15 02:01:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:14,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:14,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:14,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:14,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:14,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-15 02:01:14,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:14,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:14,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:14,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:14,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:14,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:14,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:14,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:14,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:14,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:01:14,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:14,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:14,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:14,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:14,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:14,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:14,655 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 02:01:14,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41908381] [2020-10-15 02:01:14,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:14,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-15 02:01:14,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602877058] [2020-10-15 02:01:14,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:01:14,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:14,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:01:14,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:01:14,658 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 14 states. [2020-10-15 02:01:15,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:15,076 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2020-10-15 02:01:15,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 02:01:15,076 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2020-10-15 02:01:15,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:15,078 INFO L225 Difference]: With dead ends: 43 [2020-10-15 02:01:15,078 INFO L226 Difference]: Without dead ends: 39 [2020-10-15 02:01:15,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:01:15,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-15 02:01:15,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2020-10-15 02:01:15,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-15 02:01:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 47 transitions. [2020-10-15 02:01:15,092 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 47 transitions. Word has length 37 [2020-10-15 02:01:15,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:15,093 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 47 transitions. [2020-10-15 02:01:15,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:01:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 47 transitions. [2020-10-15 02:01:15,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-15 02:01:15,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:15,095 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:15,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:01:15,096 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:15,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:15,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1882602408, now seen corresponding path program 1 times [2020-10-15 02:01:15,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:15,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090328108] [2020-10-15 02:01:15,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:15,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:15,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:15,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:15,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:15,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:16,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:16,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-15 02:01:16,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:01:16,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 934 [2020-10-15 02:01:16,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:16,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:01:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:16,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:01:16,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:16,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:16,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:16,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:16,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:16,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:16,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:16,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:16,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:16,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:16,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:16,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:16,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:16,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:16,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:16,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:16,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:16,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:16,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 02:01:16,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:16,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:01:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:16,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:16,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:16,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:16,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:16,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:16,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:16,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:01:16,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:16,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:16,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:16,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:16,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:16,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:16,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-15 02:01:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:16,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:16,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:16,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:16,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:16,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:16,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:01:16,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:01:16,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-10-15 02:01:16,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:16,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:16,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:16,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:16,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:01:16,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:16,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:16,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:16,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:16,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:16,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 02:01:16,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:01:16,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-15 02:01:16,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:16,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:16,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:01:16,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:16,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:01:16,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:16,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:01:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:16,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:16,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:16,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:16,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:16,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:01:16,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:16,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:01:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:01:16,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:16,718 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 30 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-15 02:01:16,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090328108] [2020-10-15 02:01:16,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:16,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-15 02:01:16,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409585480] [2020-10-15 02:01:16,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:01:16,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:16,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:01:16,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:01:16,721 INFO L87 Difference]: Start difference. First operand 35 states and 47 transitions. Second operand 13 states. [2020-10-15 02:01:17,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:17,091 INFO L93 Difference]: Finished difference Result 68 states and 100 transitions. [2020-10-15 02:01:17,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:01:17,091 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2020-10-15 02:01:17,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:17,093 INFO L225 Difference]: With dead ends: 68 [2020-10-15 02:01:17,093 INFO L226 Difference]: Without dead ends: 39 [2020-10-15 02:01:17,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:01:17,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-15 02:01:17,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2020-10-15 02:01:17,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-15 02:01:17,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2020-10-15 02:01:17,105 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 43 [2020-10-15 02:01:17,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:17,105 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2020-10-15 02:01:17,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:01:17,105 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2020-10-15 02:01:17,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-15 02:01:17,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:17,107 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:17,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:01:17,108 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:17,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:17,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1837502139, now seen corresponding path program 3 times [2020-10-15 02:01:17,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:17,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220826558] [2020-10-15 02:01:17,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:17,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:17,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:17,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-15 02:01:17,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:17,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-10-15 02:01:17,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:17,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:17,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:01:17,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:17,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:01:17,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:17,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:17,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:17,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:17,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:17,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:17,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:17,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:17,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:17,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:17,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:17,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:17,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:17,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:17,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:17,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:17,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:17,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:17,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 02:01:17,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:17,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:17,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:01:17,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:17,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:17,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:17,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:17,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:17,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:17,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:17,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:17,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:01:17,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:17,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:17,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:17,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:17,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:17,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:17,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-15 02:01:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:17,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:17,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:17,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:17,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:17,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-15 02:01:17,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:17,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:17,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:17,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:17,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:17,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:17,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:17,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:17,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:17,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:17,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:17,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-15 02:01:17,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:17,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:17,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:17,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:17,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:17,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:17,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:17,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:17,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:17,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:17,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:17,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:01:17,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:17,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:17,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:17,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:17,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:18,014 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 13 proven. 26 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-15 02:01:18,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220826558] [2020-10-15 02:01:18,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:18,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-15 02:01:18,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701304945] [2020-10-15 02:01:18,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-15 02:01:18,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:18,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-15 02:01:18,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:01:18,017 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand 16 states. [2020-10-15 02:01:18,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:18,322 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2020-10-15 02:01:18,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 02:01:18,323 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 44 [2020-10-15 02:01:18,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:18,324 INFO L225 Difference]: With dead ends: 46 [2020-10-15 02:01:18,324 INFO L226 Difference]: Without dead ends: 42 [2020-10-15 02:01:18,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:01:18,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-15 02:01:18,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2020-10-15 02:01:18,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-15 02:01:18,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2020-10-15 02:01:18,336 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 51 transitions. Word has length 44 [2020-10-15 02:01:18,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:18,336 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 51 transitions. [2020-10-15 02:01:18,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-15 02:01:18,336 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2020-10-15 02:01:18,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-15 02:01:18,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:18,339 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:18,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:01:18,339 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:18,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:18,339 INFO L82 PathProgramCache]: Analyzing trace with hash 53714530, now seen corresponding path program 2 times [2020-10-15 02:01:18,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:18,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [340207513] [2020-10-15 02:01:18,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:18,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:19,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:19,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:20,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:20,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:20,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:22,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:22,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-15 02:01:22,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 02:01:22,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4061 [2020-10-15 02:01:22,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:22,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:22,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:01:22,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-15 02:01:22,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:01:22,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:22,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:22,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:22,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:22,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:22,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:22,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:01:22,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:22,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:22,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:22,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:22,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:22,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:22,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:22,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:22,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:22,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:22,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:22,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:01:22,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:22,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:22,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:22,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:22,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:22,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:22,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:22,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:22,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:22,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:01:22,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:22,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:22,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:22,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:22,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:22,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:22,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-15 02:01:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:22,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:22,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:22,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:22,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:22,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:22,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:22,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:23,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:23,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:23,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:23,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:23,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:01:23,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 02:01:23,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1279 [2020-10-15 02:01:23,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:23,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:01:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 02:01:23,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:23,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:23,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:23,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:23,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:23,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:23,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:23,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:23,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:24,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:24,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-15 02:01:24,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:01:24,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-10-15 02:01:24,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:24,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:24,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:01:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 02:01:24,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:24,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:24,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:24,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:24,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:24,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:24,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:24,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:01:24,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:01:24,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-15 02:01:24,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:24,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:24,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:01:24,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:24,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:01:24,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:24,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:01:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:24,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:24,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:24,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:24,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:24,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:01:24,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:24,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:24,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:01:24,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:24,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:01:24,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:24,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:24,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:24,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:24,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:24,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:24,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:01:24,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:24,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:24,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:24,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:24,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:24,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:24,390 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 41 proven. 21 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-10-15 02:01:24,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [340207513] [2020-10-15 02:01:24,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:24,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-15 02:01:24,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259226512] [2020-10-15 02:01:24,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:01:24,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:24,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:01:24,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:01:24,392 INFO L87 Difference]: Start difference. First operand 38 states and 51 transitions. Second operand 9 states. [2020-10-15 02:01:24,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:24,495 INFO L93 Difference]: Finished difference Result 68 states and 97 transitions. [2020-10-15 02:01:24,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:01:24,496 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2020-10-15 02:01:24,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:24,497 INFO L225 Difference]: With dead ends: 68 [2020-10-15 02:01:24,498 INFO L226 Difference]: Without dead ends: 36 [2020-10-15 02:01:24,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:01:24,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-15 02:01:24,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2020-10-15 02:01:24,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-15 02:01:24,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2020-10-15 02:01:24,505 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 57 [2020-10-15 02:01:24,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:24,505 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-10-15 02:01:24,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:01:24,505 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2020-10-15 02:01:24,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-15 02:01:24,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:24,507 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:24,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:01:24,507 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:24,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:24,508 INFO L82 PathProgramCache]: Analyzing trace with hash -149928276, now seen corresponding path program 3 times [2020-10-15 02:01:24,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:24,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334774000] [2020-10-15 02:01:24,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:24,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:24,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:24,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:24,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:24,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:24,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:24,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:24,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:25,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:25,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-15 02:01:25,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:01:25,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 521 [2020-10-15 02:01:25,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:25,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:25,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:01:25,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:25,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:01:25,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:25,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:25,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:25,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:25,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:25,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:25,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:01:25,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:25,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:25,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:25,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:25,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:25,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:25,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:25,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:25,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:25,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:25,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:25,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:25,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:01:25,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:01:25,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-15 02:01:25,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:25,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:25,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:01:25,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:25,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:01:25,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:25,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:01:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:25,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:25,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:25,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:25,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:25,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:01:25,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:25,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:25,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:01:25,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:25,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:01:25,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:25,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:25,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:25,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:25,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:25,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:25,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:25,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:25,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:25,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:25,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:25,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:25,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:25,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-15 02:01:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:25,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:25,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:25,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:25,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:25,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:01:25,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:25,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:25,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:01:25,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:25,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:01:25,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:25,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:25,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:25,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:25,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:25,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:25,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:25,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:25,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:25,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:25,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:25,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:25,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:25,294 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-15 02:01:25,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334774000] [2020-10-15 02:01:25,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:25,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-15 02:01:25,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311198408] [2020-10-15 02:01:25,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:01:25,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:25,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:01:25,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:01:25,296 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 5 states. [2020-10-15 02:01:25,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:25,351 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2020-10-15 02:01:25,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:01:25,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-10-15 02:01:25,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:25,353 INFO L225 Difference]: With dead ends: 39 [2020-10-15 02:01:25,353 INFO L226 Difference]: Without dead ends: 33 [2020-10-15 02:01:25,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:01:25,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-15 02:01:25,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-15 02:01:25,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-15 02:01:25,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2020-10-15 02:01:25,359 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 43 [2020-10-15 02:01:25,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:25,359 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2020-10-15 02:01:25,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:01:25,360 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2020-10-15 02:01:25,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-15 02:01:25,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:25,361 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:25,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:01:25,361 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:25,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:25,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1146349017, now seen corresponding path program 4 times [2020-10-15 02:01:25,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:25,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412620595] [2020-10-15 02:01:25,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:25,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:25,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:25,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-15 02:01:25,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:25,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-10-15 02:01:25,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:25,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:25,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:01:25,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:25,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:01:25,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:25,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:25,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:25,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:25,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:25,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:25,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:25,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:25,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:25,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:25,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:25,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:25,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:25,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:25,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:25,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:25,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:25,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:25,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-15 02:01:25,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:25,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:25,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:01:25,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:25,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:25,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:25,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:25,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:25,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:25,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:25,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:25,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 02:01:25,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:25,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:25,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:25,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:25,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:25,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:25,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:25,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:25,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:25,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:25,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:25,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:01:25,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:25,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:25,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:25,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:25,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:25,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:25,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:01:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:25,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:26,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:26,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:26,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:26,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-15 02:01:26,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:26,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:26,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:26,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:26,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:26,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:26,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:26,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:26,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:26,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:26,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:26,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:01:26,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:26,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:26,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:26,162 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 38 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 02:01:26,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412620595] [2020-10-15 02:01:26,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:26,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-15 02:01:26,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752068694] [2020-10-15 02:01:26,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-15 02:01:26,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:26,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-15 02:01:26,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2020-10-15 02:01:26,165 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand 17 states. [2020-10-15 02:01:26,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:26,551 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2020-10-15 02:01:26,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 02:01:26,552 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 44 [2020-10-15 02:01:26,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:26,553 INFO L225 Difference]: With dead ends: 46 [2020-10-15 02:01:26,553 INFO L226 Difference]: Without dead ends: 42 [2020-10-15 02:01:26,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2020-10-15 02:01:26,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-15 02:01:26,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2020-10-15 02:01:26,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-15 02:01:26,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 50 transitions. [2020-10-15 02:01:26,561 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 50 transitions. Word has length 44 [2020-10-15 02:01:26,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:26,561 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 50 transitions. [2020-10-15 02:01:26,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-15 02:01:26,562 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2020-10-15 02:01:26,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-15 02:01:26,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:26,563 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:26,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:01:26,563 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:26,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:26,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1605933725, now seen corresponding path program 5 times [2020-10-15 02:01:26,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:26,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055664996] [2020-10-15 02:01:26,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:26,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:27,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:27,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-15 02:01:27,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:27,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-10-15 02:01:27,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:27,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:27,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-15 02:01:27,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:27,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:01:27,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:27,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:27,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:27,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:27,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:27,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:27,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:27,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:27,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:27,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:27,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:27,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:27,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:27,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:27,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:27,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:27,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:27,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-15 02:01:27,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:27,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:27,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:01:27,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:27,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:27,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:27,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:27,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:27,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:27,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:27,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:27,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-15 02:01:27,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:27,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:27,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:27,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:27,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:27,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:27,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:27,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:27,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:27,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:27,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:27,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:01:27,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:27,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:27,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:27,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:27,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:27,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:27,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:01:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:27,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:27,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:27,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:01:27,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:27,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-15 02:01:27,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:27,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:27,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:01:27,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:27,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:01:27,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:27,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:27,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:27,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:27,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:27,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:27,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-15 02:01:27,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:27,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:27,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:27,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:27,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:27,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:27,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:27,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:27,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:27,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:27,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:27,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-15 02:01:27,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:27,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:27,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:27,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:27,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:27,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:27,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:27,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:27,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:27,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:27,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:27,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:01:27,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:27,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:27,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:27,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:27,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:27,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:27,871 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 15 proven. 67 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-15 02:01:27,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055664996] [2020-10-15 02:01:27,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:27,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-15 02:01:27,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873302998] [2020-10-15 02:01:27,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-15 02:01:27,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:27,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-15 02:01:27,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:01:27,874 INFO L87 Difference]: Start difference. First operand 38 states and 50 transitions. Second operand 20 states. [2020-10-15 02:01:28,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:28,485 INFO L93 Difference]: Finished difference Result 49 states and 63 transitions. [2020-10-15 02:01:28,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:01:28,486 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 58 [2020-10-15 02:01:28,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:28,487 INFO L225 Difference]: With dead ends: 49 [2020-10-15 02:01:28,487 INFO L226 Difference]: Without dead ends: 45 [2020-10-15 02:01:28,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2020-10-15 02:01:28,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-15 02:01:28,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2020-10-15 02:01:28,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-15 02:01:28,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2020-10-15 02:01:28,495 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 58 [2020-10-15 02:01:28,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:28,495 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2020-10-15 02:01:28,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-15 02:01:28,495 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2020-10-15 02:01:28,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-15 02:01:28,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:28,496 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:28,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:01:28,497 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:28,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:28,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1872336740, now seen corresponding path program 6 times [2020-10-15 02:01:28,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:28,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470308995] [2020-10-15 02:01:28,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:28,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:28,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:28,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 02:01:28,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:28,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-15 02:01:28,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:28,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:28,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:01:28,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:28,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 02:01:28,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:28,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:28,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:28,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:28,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:28,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:28,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:01:28,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:28,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:28,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:28,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:28,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:28,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:28,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:28,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:28,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-15 02:01:28,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:28,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:28,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:01:28,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:28,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:28,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:28,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:28,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:29,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:29,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:29,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:29,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 02:01:29,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:29,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:29,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:29,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:29,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:29,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:29,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:29,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:29,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:29,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:29,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:29,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:01:29,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:29,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:29,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:29,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:29,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:01:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:29,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:29,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:29,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:29,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:29,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-15 02:01:29,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:29,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:29,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:29,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:29,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:29,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:29,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:29,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:29,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:29,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:29,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:29,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:01:29,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:29,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:29,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:29,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:29,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:29,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:29,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:29,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:29,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:01:29,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:29,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:29,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:29,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:29,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:29,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:29,414 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 13 proven. 51 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-15 02:01:29,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470308995] [2020-10-15 02:01:29,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:29,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-15 02:01:29,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329502127] [2020-10-15 02:01:29,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 02:01:29,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:29,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 02:01:29,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:01:29,417 INFO L87 Difference]: Start difference. First operand 41 states and 56 transitions. Second operand 18 states. [2020-10-15 02:01:29,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:29,786 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2020-10-15 02:01:29,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 02:01:29,786 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 51 [2020-10-15 02:01:29,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:29,787 INFO L225 Difference]: With dead ends: 49 [2020-10-15 02:01:29,787 INFO L226 Difference]: Without dead ends: 45 [2020-10-15 02:01:29,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:01:29,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-15 02:01:29,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2020-10-15 02:01:29,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-15 02:01:29,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2020-10-15 02:01:29,795 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 51 [2020-10-15 02:01:29,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:29,795 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2020-10-15 02:01:29,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-15 02:01:29,796 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-10-15 02:01:29,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 02:01:29,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:29,797 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:29,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:01:29,797 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:29,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:29,797 INFO L82 PathProgramCache]: Analyzing trace with hash 921134702, now seen corresponding path program 7 times [2020-10-15 02:01:29,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:29,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1527597725] [2020-10-15 02:01:29,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:29,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:30,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:30,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 02:01:30,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:30,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 592 [2020-10-15 02:01:30,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:30,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:30,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-15 02:01:30,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:30,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 02:01:30,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:30,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:30,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:30,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:30,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:30,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:30,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:01:30,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:30,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:30,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:30,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:30,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:30,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:30,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:30,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:30,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:30,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:30,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:30,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-15 02:01:30,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:30,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:30,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:01:30,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:30,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:30,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:30,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:30,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:30,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:30,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:30,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:30,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-15 02:01:30,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:30,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:30,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:30,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:30,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:30,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:30,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:30,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:30,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:30,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:30,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:30,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:01:30,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:30,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:30,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:30,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:30,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:30,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:30,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:01:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:30,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:31,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:31,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:01:31,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:31,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-15 02:01:31,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:31,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:01:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:31,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:01:31,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:31,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:31,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:31,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:31,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:01:31,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:31,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-15 02:01:31,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:31,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:31,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:01:31,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:31,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:01:31,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:31,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:31,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:31,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:31,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:31,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:31,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-15 02:01:31,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:31,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:31,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:31,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:31,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:31,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:31,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:31,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:31,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:31,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:31,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:31,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:01:31,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:31,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:31,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:31,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:31,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:31,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:31,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:31,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:31,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:31,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:31,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:31,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:01:31,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:31,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:31,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:31,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:31,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:31,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:31,637 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 20 proven. 90 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-15 02:01:31,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1527597725] [2020-10-15 02:01:31,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:31,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-15 02:01:31,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092763369] [2020-10-15 02:01:31,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-15 02:01:31,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:31,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-15 02:01:31,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=460, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:01:31,641 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand 23 states. [2020-10-15 02:01:32,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:32,492 INFO L93 Difference]: Finished difference Result 52 states and 68 transitions. [2020-10-15 02:01:32,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:01:32,493 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 65 [2020-10-15 02:01:32,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:32,494 INFO L225 Difference]: With dead ends: 52 [2020-10-15 02:01:32,494 INFO L226 Difference]: Without dead ends: 48 [2020-10-15 02:01:32,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 02:01:32,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-15 02:01:32,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-10-15 02:01:32,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-15 02:01:32,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 61 transitions. [2020-10-15 02:01:32,503 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 61 transitions. Word has length 65 [2020-10-15 02:01:32,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:32,503 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 61 transitions. [2020-10-15 02:01:32,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-15 02:01:32,503 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 61 transitions. [2020-10-15 02:01:32,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-15 02:01:32,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:32,504 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:32,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:01:32,505 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:32,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:32,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1850137581, now seen corresponding path program 8 times [2020-10-15 02:01:32,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:32,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846307813] [2020-10-15 02:01:32,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:32,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:33,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:33,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-15 02:01:33,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:33,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 702 [2020-10-15 02:01:33,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:33,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:33,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-15 02:01:33,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:33,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 02:01:33,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:33,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:33,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:33,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:33,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:33,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:33,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:01:33,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:33,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:33,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:33,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:33,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:33,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:33,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:33,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:33,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:33,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:33,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:33,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-15 02:01:33,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:33,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:33,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:01:33,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:33,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:33,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:33,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:33,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:33,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:33,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:33,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:33,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-15 02:01:33,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:33,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:33,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:33,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:33,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:33,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:33,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:33,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:33,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:33,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:01:33,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:33,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:33,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:33,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:33,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:33,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:33,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:01:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:33,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:33,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:33,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:01:33,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:33,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-15 02:01:33,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:33,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:33,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:01:33,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:33,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:01:33,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:33,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:33,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:34,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:34,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:01:34,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:34,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-15 02:01:34,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:34,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:34,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:01:34,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:34,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:01:34,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:34,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:34,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:34,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:34,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:01:34,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:34,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-15 02:01:34,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:34,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:01:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:01:34,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:34,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:34,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:34,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:34,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:34,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:34,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-15 02:01:34,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:34,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:34,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:34,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:34,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:34,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:34,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:34,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:34,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:34,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:34,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:34,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:01:34,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:34,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:34,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:34,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:34,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:34,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:34,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:34,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:34,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:34,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:34,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:34,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:01:34,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:34,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:34,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:34,870 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 10 proven. 111 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-15 02:01:34,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846307813] [2020-10-15 02:01:34,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:34,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-15 02:01:34,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899010192] [2020-10-15 02:01:34,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-15 02:01:34,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:34,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-15 02:01:34,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=506, Unknown=0, NotChecked=0, Total=552 [2020-10-15 02:01:34,874 INFO L87 Difference]: Start difference. First operand 44 states and 61 transitions. Second operand 24 states. [2020-10-15 02:01:35,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:35,931 INFO L93 Difference]: Finished difference Result 55 states and 74 transitions. [2020-10-15 02:01:35,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:01:35,932 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 72 [2020-10-15 02:01:35,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:35,933 INFO L225 Difference]: With dead ends: 55 [2020-10-15 02:01:35,934 INFO L226 Difference]: Without dead ends: 51 [2020-10-15 02:01:35,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=114, Invalid=1218, Unknown=0, NotChecked=0, Total=1332 [2020-10-15 02:01:35,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-15 02:01:35,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2020-10-15 02:01:35,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-15 02:01:35,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-10-15 02:01:35,942 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 72 [2020-10-15 02:01:35,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:35,943 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-10-15 02:01:35,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-15 02:01:35,943 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-10-15 02:01:35,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-15 02:01:35,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:35,944 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:35,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:01:35,945 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:35,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:35,945 INFO L82 PathProgramCache]: Analyzing trace with hash -746065050, now seen corresponding path program 9 times [2020-10-15 02:01:35,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:35,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270483179] [2020-10-15 02:01:35,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:35,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:36,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:36,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 02:01:36,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:36,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-15 02:01:36,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:36,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:36,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:01:36,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:36,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 02:01:36,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:36,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:36,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:36,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:36,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:36,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:36,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:01:36,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:36,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:36,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:36,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:36,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:36,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:36,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:36,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:36,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:36,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:01:36,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:36,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-15 02:01:36,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:36,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:36,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:01:36,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:36,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:01:36,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:36,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:36,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:36,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:36,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:36,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:36,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-15 02:01:36,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:36,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:36,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:36,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:36,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:36,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:36,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:36,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:36,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:36,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:01:36,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:36,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:36,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:36,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:36,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:36,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:36,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:36,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:36,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:36,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:36,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:36,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:01:36,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:36,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:36,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:36,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:36,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:36,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:36,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:01:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:36,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:36,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:36,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:36,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:36,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:01:36,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:36,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:36,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:36,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:36,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:36,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:36,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:36,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:36,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:36,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:36,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:36,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:01:36,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:36,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:36,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:36,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:36,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:36,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:36,746 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 13 proven. 46 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-15 02:01:36,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270483179] [2020-10-15 02:01:36,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:36,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-15 02:01:36,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414701001] [2020-10-15 02:01:36,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 02:01:36,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:36,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 02:01:36,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:01:36,750 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 18 states. [2020-10-15 02:01:37,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:37,212 INFO L93 Difference]: Finished difference Result 57 states and 81 transitions. [2020-10-15 02:01:37,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:01:37,213 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 51 [2020-10-15 02:01:37,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:37,214 INFO L225 Difference]: With dead ends: 57 [2020-10-15 02:01:37,214 INFO L226 Difference]: Without dead ends: 53 [2020-10-15 02:01:37,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=595, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:01:37,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-15 02:01:37,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2020-10-15 02:01:37,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-15 02:01:37,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 74 transitions. [2020-10-15 02:01:37,232 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 74 transitions. Word has length 51 [2020-10-15 02:01:37,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:37,233 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 74 transitions. [2020-10-15 02:01:37,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-15 02:01:37,233 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 74 transitions. [2020-10-15 02:01:37,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-15 02:01:37,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:37,238 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:37,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:01:37,239 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:37,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:37,240 INFO L82 PathProgramCache]: Analyzing trace with hash -550213078, now seen corresponding path program 4 times [2020-10-15 02:01:37,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:37,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471120262] [2020-10-15 02:01:37,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:37,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:37,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:37,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:37,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:37,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:37,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:37,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:37,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:38,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:38,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:38,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:40,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-15 02:01:40,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-15 02:01:40,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2808 [2020-10-15 02:01:40,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:40,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:40,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:40,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 02:01:40,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:40,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:40,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:40,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:40,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:40,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:01:40,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:40,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:40,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:40,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:40,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:40,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:40,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:40,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:40,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-15 02:01:40,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:01:40,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 489 [2020-10-15 02:01:40,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:40,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:40,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:40,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:40,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 02:01:40,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:40,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:40,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:40,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:01:40,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:01:40,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-15 02:01:40,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:40,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:40,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:01:40,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:40,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:01:40,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:40,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:01:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:40,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:40,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:40,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:40,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:01:40,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:40,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:40,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:01:40,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:40,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:01:40,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:40,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:40,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:40,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:40,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:40,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:40,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:40,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:40,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:40,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:40,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:40,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:40,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:01:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:40,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:40,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:01:40,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:40,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:01:40,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:40,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:40,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:01:40,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:40,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 02:01:40,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:40,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:40,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:40,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:01:40,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:40,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:01:40,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:40,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:40,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:40,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:40,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:40,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:40,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:40,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:40,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:40,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:40,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:01:40,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:40,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:40,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:40,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:40,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:40,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:40,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:40,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:40,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:40,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:40,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:01:40,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:40,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:40,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:40,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:40,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:40,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:40,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:40,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:40,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:40,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:40,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:40,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:40,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:40,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:40,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:40,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:40,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:40,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:40,892 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 10 proven. 52 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2020-10-15 02:01:40,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471120262] [2020-10-15 02:01:40,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:40,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-15 02:01:40,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915494310] [2020-10-15 02:01:40,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 02:01:40,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:40,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 02:01:40,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:01:40,894 INFO L87 Difference]: Start difference. First operand 49 states and 74 transitions. Second operand 7 states. [2020-10-15 02:01:40,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:40,961 INFO L93 Difference]: Finished difference Result 58 states and 89 transitions. [2020-10-15 02:01:40,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:01:40,962 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-10-15 02:01:40,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:40,963 INFO L225 Difference]: With dead ends: 58 [2020-10-15 02:01:40,963 INFO L226 Difference]: Without dead ends: 52 [2020-10-15 02:01:40,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:01:40,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-15 02:01:40,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-15 02:01:40,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-15 02:01:40,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-10-15 02:01:40,972 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 71 [2020-10-15 02:01:40,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:40,972 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-10-15 02:01:40,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 02:01:40,972 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2020-10-15 02:01:40,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-15 02:01:40,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:40,973 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:40,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 02:01:40,974 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:40,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:40,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1255254341, now seen corresponding path program 10 times [2020-10-15 02:01:40,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:40,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118558668] [2020-10-15 02:01:40,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:40,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:41,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:41,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-15 02:01:41,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:41,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-10-15 02:01:41,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:41,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:41,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-15 02:01:41,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:41,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:01:41,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:41,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:41,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:41,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:41,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:41,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:41,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:01:41,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:41,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:41,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:41,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:41,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:41,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:41,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:41,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:41,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:41,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:01:41,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:41,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-15 02:01:41,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:41,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:41,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:01:41,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:41,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:01:41,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:41,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:41,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:41,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:41,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:41,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:41,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 02:01:41,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:41,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:41,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:41,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:41,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:41,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:41,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:41,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:41,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:41,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:41,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:41,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:01:41,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:41,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:41,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:41,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:41,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:41,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:41,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:41,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:41,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:41,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:01:41,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:41,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:41,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:41,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:41,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:41,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:41,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:01:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:41,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:41,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:41,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:41,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:41,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-15 02:01:41,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:41,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:41,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:41,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:41,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:41,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:41,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:41,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:41,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:41,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:41,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:41,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:01:41,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:41,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:41,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:41,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:41,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:41,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:42,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:42,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:42,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:42,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:42,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:42,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:01:42,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:42,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:42,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:42,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:42,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:42,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:42,099 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 2 proven. 91 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 02:01:42,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118558668] [2020-10-15 02:01:42,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:42,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-15 02:01:42,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537039648] [2020-10-15 02:01:42,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-15 02:01:42,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:42,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-15 02:01:42,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:01:42,102 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 22 states. [2020-10-15 02:01:42,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:42,913 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2020-10-15 02:01:42,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:01:42,914 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 58 [2020-10-15 02:01:42,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:42,915 INFO L225 Difference]: With dead ends: 62 [2020-10-15 02:01:42,915 INFO L226 Difference]: Without dead ends: 58 [2020-10-15 02:01:42,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=107, Invalid=823, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:01:42,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-15 02:01:42,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-15 02:01:42,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 02:01:42,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 83 transitions. [2020-10-15 02:01:42,924 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 83 transitions. Word has length 58 [2020-10-15 02:01:42,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:42,924 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 83 transitions. [2020-10-15 02:01:42,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-15 02:01:42,924 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 83 transitions. [2020-10-15 02:01:42,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 02:01:42,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:42,926 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:42,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 02:01:42,926 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:42,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:42,926 INFO L82 PathProgramCache]: Analyzing trace with hash -2039564078, now seen corresponding path program 11 times [2020-10-15 02:01:42,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:42,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808237833] [2020-10-15 02:01:42,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:42,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:43,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:43,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:01:43,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:43,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 689 [2020-10-15 02:01:43,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:43,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:43,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-15 02:01:43,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:43,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-15 02:01:43,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:43,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:43,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:43,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:43,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:43,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:43,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:01:43,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:43,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:43,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:43,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:43,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:43,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:01:43,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:43,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:43,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:43,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:01:43,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:43,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-15 02:01:43,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:43,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:01:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:01:43,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:43,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:43,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:43,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:43,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:43,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:43,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-15 02:01:43,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:43,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:43,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:43,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:43,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:43,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:43,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:43,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:43,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:43,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:43,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:43,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 02:01:43,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:43,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:43,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:43,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:43,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:43,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:44,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:44,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:44,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:44,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:44,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:44,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:01:44,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:44,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:44,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:44,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:44,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:44,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:44,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:01:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:44,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:44,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:44,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:01:44,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:44,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-15 02:01:44,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:44,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:44,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:01:44,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:44,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:01:44,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:44,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:44,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:44,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:44,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:44,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:01:44,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:44,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-15 02:01:44,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:44,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:44,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:01:44,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:44,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:01:44,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:44,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:44,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:44,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:44,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:01:44,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:44,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-15 02:01:44,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:44,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:44,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:01:44,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:44,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:01:44,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:44,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:44,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:44,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:44,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:44,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:44,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-15 02:01:44,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:44,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:44,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:44,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:44,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:44,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:44,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:44,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:44,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:44,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:44,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:44,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:01:44,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:44,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:44,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:44,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:44,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:44,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:44,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:45,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:45,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:45,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:45,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:45,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:01:45,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:45,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:45,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:45,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:45,090 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 32 proven. 157 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-15 02:01:45,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808237833] [2020-10-15 02:01:45,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:45,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-15 02:01:45,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83473480] [2020-10-15 02:01:45,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-15 02:01:45,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:45,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-15 02:01:45,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=699, Unknown=0, NotChecked=0, Total=756 [2020-10-15 02:01:45,092 INFO L87 Difference]: Start difference. First operand 54 states and 83 transitions. Second operand 28 states. [2020-10-15 02:01:46,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:46,403 INFO L93 Difference]: Finished difference Result 62 states and 89 transitions. [2020-10-15 02:01:46,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:01:46,404 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 79 [2020-10-15 02:01:46,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:46,405 INFO L225 Difference]: With dead ends: 62 [2020-10-15 02:01:46,405 INFO L226 Difference]: Without dead ends: 58 [2020-10-15 02:01:46,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=149, Invalid=1491, Unknown=0, NotChecked=0, Total=1640 [2020-10-15 02:01:46,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-15 02:01:46,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-15 02:01:46,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 02:01:46,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 82 transitions. [2020-10-15 02:01:46,413 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 82 transitions. Word has length 79 [2020-10-15 02:01:46,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:46,414 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 82 transitions. [2020-10-15 02:01:46,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-15 02:01:46,414 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 82 transitions. [2020-10-15 02:01:46,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 02:01:46,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:46,415 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:46,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 02:01:46,416 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:46,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:46,416 INFO L82 PathProgramCache]: Analyzing trace with hash 912513436, now seen corresponding path program 12 times [2020-10-15 02:01:46,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:46,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224327173] [2020-10-15 02:01:46,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:46,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:46,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:46,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 02:01:46,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:46,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-10-15 02:01:46,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:46,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:46,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-15 02:01:46,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:46,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 02:01:46,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:46,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:46,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:46,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:46,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:46,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:46,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:01:46,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:46,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:46,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:46,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:46,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:46,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:46,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:46,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:46,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:46,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:01:46,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:46,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-15 02:01:46,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:46,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:46,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:01:46,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:46,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:01:46,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:46,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:46,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:46,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:46,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:46,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:46,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 02:01:46,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:46,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:46,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:46,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:46,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:46,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:47,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:47,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:47,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:47,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:47,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:47,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:01:47,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:47,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:47,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:47,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:47,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:47,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:47,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:47,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:47,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:47,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:01:47,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:47,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:47,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:47,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:47,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:47,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:47,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:01:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:47,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:47,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:47,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:01:47,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:47,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-15 02:01:47,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:47,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:47,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:01:47,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:47,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:01:47,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:47,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:47,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:47,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:47,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:47,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:47,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-15 02:01:47,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:47,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:47,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:47,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:47,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:47,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:47,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:47,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:47,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:47,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:47,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:47,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 02:01:47,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:47,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:47,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:47,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:47,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:47,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:47,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:47,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:47,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:47,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:47,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:47,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:01:47,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:47,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:47,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:47,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:47,504 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 10 proven. 78 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-15 02:01:47,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224327173] [2020-10-15 02:01:47,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:47,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-15 02:01:47,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170191320] [2020-10-15 02:01:47,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 02:01:47,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:47,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 02:01:47,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:01:47,507 INFO L87 Difference]: Start difference. First operand 54 states and 82 transitions. Second operand 18 states. [2020-10-15 02:01:48,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:48,061 INFO L93 Difference]: Finished difference Result 62 states and 88 transitions. [2020-10-15 02:01:48,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:01:48,061 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 65 [2020-10-15 02:01:48,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:48,063 INFO L225 Difference]: With dead ends: 62 [2020-10-15 02:01:48,063 INFO L226 Difference]: Without dead ends: 58 [2020-10-15 02:01:48,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 18 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=619, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:01:48,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-15 02:01:48,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-15 02:01:48,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 02:01:48,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 81 transitions. [2020-10-15 02:01:48,072 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 81 transitions. Word has length 65 [2020-10-15 02:01:48,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:48,072 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 81 transitions. [2020-10-15 02:01:48,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-15 02:01:48,072 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 81 transitions. [2020-10-15 02:01:48,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-15 02:01:48,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:48,074 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:48,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 02:01:48,074 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:48,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:48,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1677321585, now seen corresponding path program 13 times [2020-10-15 02:01:48,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:48,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [354057167] [2020-10-15 02:01:48,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:48,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:48,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:48,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-15 02:01:48,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:48,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-10-15 02:01:48,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:48,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:48,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-15 02:01:48,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:48,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 02:01:48,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:48,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:48,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:48,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:48,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:48,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:48,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:01:48,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:48,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:48,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:48,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:48,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:48,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:48,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:48,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:48,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:01:48,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:48,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-15 02:01:48,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:48,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:48,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:01:48,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:48,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:01:48,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:48,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:48,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:48,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:48,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:48,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:48,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-15 02:01:48,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:48,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:48,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:48,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:48,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:48,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:48,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:48,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:48,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:48,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:48,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:48,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:01:48,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:48,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:48,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:48,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:48,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:48,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:48,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:48,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:48,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:48,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:48,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:48,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:01:48,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:48,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:48,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:48,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:48,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:48,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:48,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:01:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:48,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:49,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:49,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:01:49,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:49,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-15 02:01:49,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:49,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:49,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:01:49,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:49,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:01:49,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:49,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:49,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:49,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:49,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:01:49,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:49,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-15 02:01:49,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:49,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:01:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:01:49,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:49,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:49,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:49,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:49,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:49,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:49,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:01:49,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:49,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:49,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:49,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:49,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:49,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:49,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:49,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:49,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:49,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:49,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:49,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:01:49,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:49,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:49,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:49,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:49,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:49,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:49,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:49,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:49,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:49,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:49,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:49,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:01:49,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:49,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:49,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:49,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:49,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:49,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:49,567 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 33 proven. 131 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-10-15 02:01:49,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [354057167] [2020-10-15 02:01:49,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:49,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-15 02:01:49,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226242308] [2020-10-15 02:01:49,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-15 02:01:49,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:49,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-15 02:01:49,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=596, Unknown=0, NotChecked=0, Total=650 [2020-10-15 02:01:49,569 INFO L87 Difference]: Start difference. First operand 54 states and 81 transitions. Second operand 26 states. [2020-10-15 02:01:50,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:50,603 INFO L93 Difference]: Finished difference Result 62 states and 87 transitions. [2020-10-15 02:01:50,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:01:50,603 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 72 [2020-10-15 02:01:50,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:50,605 INFO L225 Difference]: With dead ends: 62 [2020-10-15 02:01:50,605 INFO L226 Difference]: Without dead ends: 58 [2020-10-15 02:01:50,607 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=140, Invalid=1192, Unknown=0, NotChecked=0, Total=1332 [2020-10-15 02:01:50,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-15 02:01:50,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2020-10-15 02:01:50,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-15 02:01:50,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-10-15 02:01:50,614 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 72 [2020-10-15 02:01:50,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:50,614 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-10-15 02:01:50,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-15 02:01:50,614 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2020-10-15 02:01:50,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 02:01:50,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:50,615 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:50,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 02:01:50,616 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:50,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:50,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1806425208, now seen corresponding path program 14 times [2020-10-15 02:01:50,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:50,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987627389] [2020-10-15 02:01:50,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:50,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:51,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:51,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:01:51,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:51,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-10-15 02:01:51,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:51,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-15 02:01:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-15 02:01:51,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:51,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:51,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:51,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:51,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:51,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:51,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:01:51,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:51,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:51,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:51,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:51,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:51,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:51,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:51,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:51,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:51,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:51,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:51,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-15 02:01:51,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:51,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:51,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:01:51,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:51,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:51,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:51,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:51,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:51,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:51,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:51,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:01:51,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:51,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:51,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:51,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:51,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:51,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:51,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:51,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:51,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:51,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:51,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:51,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:01:51,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:51,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:51,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:51,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:51,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:51,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:51,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:01:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:51,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:51,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:51,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:01:51,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:51,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-15 02:01:51,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:51,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:51,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:01:51,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:51,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:01:51,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:51,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:51,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:51,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:51,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:01:51,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:51,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-15 02:01:51,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:51,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:51,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:01:51,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:51,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:01:51,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:51,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:51,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:52,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:52,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:01:52,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:52,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-15 02:01:52,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:52,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:52,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:01:52,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:52,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:01:52,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:52,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:52,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:52,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:52,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:01:52,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:52,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-15 02:01:52,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:52,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:52,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:01:52,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:52,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:01:52,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:52,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:52,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:52,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:52,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:52,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:52,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-15 02:01:52,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:52,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:52,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:52,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:52,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:52,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:52,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:52,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:52,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:52,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:52,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:52,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:01:52,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:52,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:52,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:52,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:52,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:52,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:52,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:52,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:52,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:52,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:52,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:52,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:01:52,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:52,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:52,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:52,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:52,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:52,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:52,614 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 10 proven. 161 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-15 02:01:52,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987627389] [2020-10-15 02:01:52,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:52,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-15 02:01:52,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085446074] [2020-10-15 02:01:52,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-15 02:01:52,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:52,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-15 02:01:52,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=648, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:01:52,616 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 27 states. [2020-10-15 02:01:54,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:54,031 INFO L93 Difference]: Finished difference Result 65 states and 95 transitions. [2020-10-15 02:01:54,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:01:54,032 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 79 [2020-10-15 02:01:54,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:54,033 INFO L225 Difference]: With dead ends: 65 [2020-10-15 02:01:54,034 INFO L226 Difference]: Without dead ends: 61 [2020-10-15 02:01:54,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 17 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=145, Invalid=1577, Unknown=0, NotChecked=0, Total=1722 [2020-10-15 02:01:54,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-15 02:01:54,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2020-10-15 02:01:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-15 02:01:54,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 88 transitions. [2020-10-15 02:01:54,045 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 88 transitions. Word has length 79 [2020-10-15 02:01:54,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:54,045 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 88 transitions. [2020-10-15 02:01:54,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-15 02:01:54,045 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 88 transitions. [2020-10-15 02:01:54,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-15 02:01:54,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:54,047 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:54,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 02:01:54,047 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:54,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:54,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1615348441, now seen corresponding path program 15 times [2020-10-15 02:01:54,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:54,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587848661] [2020-10-15 02:01:54,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:54,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:54,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:54,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 02:01:54,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:54,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 489 [2020-10-15 02:01:54,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:54,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:54,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-15 02:01:54,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:01:54,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-15 02:01:54,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:54,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:54,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:54,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:54,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:54,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:54,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:01:54,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:54,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:54,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:54,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:54,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:54,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:54,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:01:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:54,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:54,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:54,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:01:54,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:54,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-15 02:01:54,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:54,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:54,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:01:54,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:54,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:01:54,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:54,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:54,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:54,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:54,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:54,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:54,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-15 02:01:54,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:54,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:54,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:54,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:54,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:54,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:54,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:54,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:54,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:54,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:54,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:54,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:01:54,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:54,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:54,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:54,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:54,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:55,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:55,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:55,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:55,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:55,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:55,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:01:55,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:55,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:55,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:55,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:55,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:55,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:55,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:01:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:55,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:55,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:55,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:01:55,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:55,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-10-15 02:01:55,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:55,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:55,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:01:55,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:55,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:01:55,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:55,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:55,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:55,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:55,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:01:55,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:55,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-10-15 02:01:55,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:55,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:01:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:01:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:56,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:56,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:56,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:56,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:01:56,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:56,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-15 02:01:56,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:56,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:56,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:01:56,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:56,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:01:56,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:56,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:56,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:56,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:56,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:01:56,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:56,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-15 02:01:56,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:56,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:56,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:01:56,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:56,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:01:56,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:56,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:56,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:56,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:56,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:56,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:56,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-15 02:01:56,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:56,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:56,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:01:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:01:56,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:56,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:56,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:56,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:56,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:01:56,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:56,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:01:56,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:56,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:56,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:56,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:56,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:01:56,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:56,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:56,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:56,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:56,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:56,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:56,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:01:56,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:56,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:56,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:56,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:56,920 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 12 proven. 194 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-15 02:01:56,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587848661] [2020-10-15 02:01:56,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:56,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-15 02:01:56,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993986394] [2020-10-15 02:01:56,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-15 02:01:56,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:56,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-15 02:01:56,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=754, Unknown=0, NotChecked=0, Total=812 [2020-10-15 02:01:56,922 INFO L87 Difference]: Start difference. First operand 57 states and 88 transitions. Second operand 29 states. [2020-10-15 02:01:58,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:58,471 INFO L93 Difference]: Finished difference Result 65 states and 94 transitions. [2020-10-15 02:01:58,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:01:58,472 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 86 [2020-10-15 02:01:58,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:58,474 INFO L225 Difference]: With dead ends: 65 [2020-10-15 02:01:58,474 INFO L226 Difference]: Without dead ends: 61 [2020-10-15 02:01:58,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 17 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=151, Invalid=1741, Unknown=0, NotChecked=0, Total=1892 [2020-10-15 02:01:58,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-15 02:01:58,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2020-10-15 02:01:58,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-15 02:01:58,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 84 transitions. [2020-10-15 02:01:58,483 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 84 transitions. Word has length 86 [2020-10-15 02:01:58,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:58,483 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 84 transitions. [2020-10-15 02:01:58,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-15 02:01:58,483 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 84 transitions. [2020-10-15 02:01:58,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 02:01:58,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:58,485 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:58,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 02:01:58,485 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:58,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:58,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1304760611, now seen corresponding path program 5 times [2020-10-15 02:01:58,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:58,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144835644] [2020-10-15 02:01:58,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:58,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:58,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:58,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:58,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:58,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:58,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:58,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:58,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:59,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:59,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:00,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:00,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:00,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:01,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:01,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-15 02:02:01,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 02:02:01,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3172 [2020-10-15 02:02:01,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:01,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:02:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-15 02:02:01,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:01,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:01,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:01,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:01,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:01,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:01,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:01,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:01,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:01,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:01,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:01,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:01,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:01,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:01,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:01,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:01,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:01,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:01,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:01,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:01,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:01,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:01,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:01,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:02,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:02:02,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 02:02:02,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 577 [2020-10-15 02:02:02,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:02,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:02,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:02:02,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:02,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 02:02:02,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:02,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:02,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:02,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-15 02:02:02,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:02:02,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-15 02:02:02,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:02,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:02,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:02:02,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:02,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 02:02:02,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:02,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:02,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:02,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:02:02,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:02:02,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-15 02:02:02,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:02,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:02,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:02:02,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:02,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:02:02,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:02,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:02:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:02,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:02,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:02,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:02,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:02:02,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:02,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:02,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:02:02,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:02,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:02:02,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:02,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:02,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:02,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:02,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:02,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:02:02,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:02,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:02,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:02,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:02,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:02,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:02,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 02:02:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:02,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:02,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:02:02,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:02,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:02:02,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:02,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:02,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:02:02,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:02,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:02:02,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:02,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:02,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:02,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:02,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:02,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:02:02,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:02,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:02,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:02,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:02,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:02,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:02,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:02,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:02,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:02,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:02,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:02:02,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:02,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:02,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:02,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:02,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:02,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:02,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:02,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:02,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:02,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:02,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:02:02,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:02,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:02,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:02,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:02,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:02,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:02,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:02,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:02,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:02,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:02,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:02:02,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:02,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:02,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:02,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:02,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:02,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:02,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:02,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:02:02,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:02,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:02,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:02,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:02,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:02,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:02,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:02,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:02,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:02,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:02,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:02,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:02:02,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:02,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:02,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:02,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:02,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:02,727 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 15 proven. 121 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-10-15 02:02:02,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144835644] [2020-10-15 02:02:02,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:02,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-15 02:02:02,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000786911] [2020-10-15 02:02:02,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 02:02:02,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:02,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 02:02:02,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-15 02:02:02,729 INFO L87 Difference]: Start difference. First operand 55 states and 84 transitions. Second operand 8 states. [2020-10-15 02:02:02,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:02,831 INFO L93 Difference]: Finished difference Result 59 states and 87 transitions. [2020-10-15 02:02:02,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:02:02,831 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2020-10-15 02:02:02,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:02,833 INFO L225 Difference]: With dead ends: 59 [2020-10-15 02:02:02,833 INFO L226 Difference]: Without dead ends: 43 [2020-10-15 02:02:02,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:02:02,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-15 02:02:02,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-15 02:02:02,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-15 02:02:02,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2020-10-15 02:02:02,840 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 92 [2020-10-15 02:02:02,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:02,840 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2020-10-15 02:02:02,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 02:02:02,841 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2020-10-15 02:02:02,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 02:02:02,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:02,841 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:02,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 02:02:02,842 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:02,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:02,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1394734426, now seen corresponding path program 16 times [2020-10-15 02:02:02,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:02,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884002098] [2020-10-15 02:02:02,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:02,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:03,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:03,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 02:02:03,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:03,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-15 02:02:03,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:03,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-15 02:02:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:03,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-15 02:02:03,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:03,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:03,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:03,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:03,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:03,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:03,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:03,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:03,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:03,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:03,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:03,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:03,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:03,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:03,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:03,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-15 02:02:03,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:03,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:03,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:02:03,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:03,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:03,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:03,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:03,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:03,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:03,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:03,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:03,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-15 02:02:03,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:03,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:03,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:03,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:03,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:03,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:03,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:03,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:03,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:03,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:03,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:03,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-15 02:02:03,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:03,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:03,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:03,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:03,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:03,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:03,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:03,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:03,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:03,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:03,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:03,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 02:02:03,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:03,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:03,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:03,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:03,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:03,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:03,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:03,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:03,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:03,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:03,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:03,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:02:03,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:03,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:03,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:03,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:03,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:03,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:03,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:02:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:03,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:03,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:03,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:03,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:03,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 02:02:03,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:03,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:03,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:03,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:03,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:03,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:03,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:03,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:03,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:03,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:03,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:03,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:02:03,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:03,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:03,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:03,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:03,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:03,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:04,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:04,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:04,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:04,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:04,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:04,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:02:04,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:04,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:04,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:04,125 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 10 proven. 98 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-15 02:02:04,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884002098] [2020-10-15 02:02:04,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:04,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-15 02:02:04,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619938574] [2020-10-15 02:02:04,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-15 02:02:04,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:04,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-15 02:02:04,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:02:04,127 INFO L87 Difference]: Start difference. First operand 43 states and 56 transitions. Second operand 22 states. [2020-10-15 02:02:04,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:04,971 INFO L93 Difference]: Finished difference Result 53 states and 70 transitions. [2020-10-15 02:02:04,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:02:04,974 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 65 [2020-10-15 02:02:04,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:04,975 INFO L225 Difference]: With dead ends: 53 [2020-10-15 02:02:04,976 INFO L226 Difference]: Without dead ends: 49 [2020-10-15 02:02:04,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 13 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=111, Invalid=945, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 02:02:04,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-15 02:02:04,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2020-10-15 02:02:04,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-15 02:02:04,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2020-10-15 02:02:04,993 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 65 [2020-10-15 02:02:04,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:04,994 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2020-10-15 02:02:04,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-15 02:02:04,994 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2020-10-15 02:02:04,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:02:04,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:04,996 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:05,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-15 02:02:05,000 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:05,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:05,001 INFO L82 PathProgramCache]: Analyzing trace with hash -335786642, now seen corresponding path program 17 times [2020-10-15 02:02:05,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:05,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20645228] [2020-10-15 02:02:05,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:05,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:06,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:06,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:02:06,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:06,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1044 [2020-10-15 02:02:06,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:06,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:06,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-15 02:02:06,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:06,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-15 02:02:06,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:06,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:06,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:06,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:06,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:06,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:06,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:06,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:06,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:06,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:06,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:06,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:06,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:06,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:06,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:06,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:06,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:06,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:06,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-15 02:02:06,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:06,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:06,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:02:06,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:06,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:06,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:06,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:06,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:06,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:06,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:06,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:06,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-15 02:02:06,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:06,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:06,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:06,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:06,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:06,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:06,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:06,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:06,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:06,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:06,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:06,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 02:02:06,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:06,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:06,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:06,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:06,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:06,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:06,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:06,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:06,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:06,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:06,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:06,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 02:02:06,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:06,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:06,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:06,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:06,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:06,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:06,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:06,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:06,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:06,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:06,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:06,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:02:06,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:06,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:06,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:06,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:02:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:06,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:06,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:06,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:02:06,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:06,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-15 02:02:06,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:06,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:02:06,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:06,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:02:06,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:06,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:06,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:07,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:07,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:07,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:07,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-15 02:02:07,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:07,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:07,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:02:07,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:07,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:02:07,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:07,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:07,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:07,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:07,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:07,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:07,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-15 02:02:07,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:07,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:07,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:07,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:07,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:07,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:07,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:07,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:07,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:07,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:07,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:07,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-15 02:02:07,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:07,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:07,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:07,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:07,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:07,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:07,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:07,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:07,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:07,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:07,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:07,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-15 02:02:07,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:07,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:07,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:07,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:07,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:07,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:07,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:07,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:07,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:02:07,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:07,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:07,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:07,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:07,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:07,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:07,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:07,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:07,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:07,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:07,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:07,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:02:07,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:07,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:07,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:07,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:08,060 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 19 proven. 225 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-15 02:02:08,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20645228] [2020-10-15 02:02:08,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:08,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-15 02:02:08,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076674254] [2020-10-15 02:02:08,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-15 02:02:08,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:08,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-15 02:02:08,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=869, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:02:08,063 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand 31 states. [2020-10-15 02:02:09,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:09,705 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2020-10-15 02:02:09,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:02:09,706 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 93 [2020-10-15 02:02:09,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:09,708 INFO L225 Difference]: With dead ends: 53 [2020-10-15 02:02:09,708 INFO L226 Difference]: Without dead ends: 49 [2020-10-15 02:02:09,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 18 SyntacticMatches, 7 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=156, Invalid=1914, Unknown=0, NotChecked=0, Total=2070 [2020-10-15 02:02:09,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-15 02:02:09,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2020-10-15 02:02:09,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-15 02:02:09,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 62 transitions. [2020-10-15 02:02:09,715 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 62 transitions. Word has length 93 [2020-10-15 02:02:09,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:09,715 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 62 transitions. [2020-10-15 02:02:09,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-15 02:02:09,715 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2020-10-15 02:02:09,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-15 02:02:09,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:09,716 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:09,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 02:02:09,717 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:09,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:09,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1937884195, now seen corresponding path program 18 times [2020-10-15 02:02:09,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:09,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283468630] [2020-10-15 02:02:09,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:09,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:10,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:10,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 02:02:10,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:10,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 527 [2020-10-15 02:02:10,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:10,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:10,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-15 02:02:10,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:10,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-15 02:02:10,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:10,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:10,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:10,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:10,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:10,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:10,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:10,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:10,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:10,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:10,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:10,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:10,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:10,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:10,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:10,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:10,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:10,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:10,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-15 02:02:10,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:10,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:10,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:02:10,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:10,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:10,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:10,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:10,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:10,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:10,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:10,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:10,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-15 02:02:10,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:10,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:10,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:10,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:10,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:10,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:10,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:10,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:10,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:10,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:10,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:10,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 02:02:10,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:10,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:10,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:10,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:10,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:10,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:10,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:10,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:10,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:10,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:10,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:10,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:02:10,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:10,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:10,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:10,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:10,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:10,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:10,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:10,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:10,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:10,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:10,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:10,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:02:10,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:10,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:10,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:10,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:10,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:10,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:10,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:02:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:10,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:10,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:10,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:10,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:10,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-15 02:02:10,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:10,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:10,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:02:10,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:10,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:02:10,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:11,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:11,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:11,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:11,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:11,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:11,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-15 02:02:11,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:11,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:11,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:11,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:11,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:11,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:11,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:11,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:11,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:11,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:11,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:11,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-15 02:02:11,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:11,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:11,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:11,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:11,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:11,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:11,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:11,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:11,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:11,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:11,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:11,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-15 02:02:11,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:11,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:11,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:11,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:11,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:11,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:11,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:11,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:11,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:11,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:11,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:11,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:02:11,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:11,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:11,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:11,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:11,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:11,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:11,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:11,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:11,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:11,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:11,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:11,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:02:11,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:11,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:11,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:11,766 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 44 proven. 183 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-10-15 02:02:11,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283468630] [2020-10-15 02:02:11,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:11,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-15 02:02:11,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077635578] [2020-10-15 02:02:11,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-15 02:02:11,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:11,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-15 02:02:11,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=808, Unknown=0, NotChecked=0, Total=870 [2020-10-15 02:02:11,768 INFO L87 Difference]: Start difference. First operand 45 states and 62 transitions. Second operand 30 states. [2020-10-15 02:02:13,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:13,050 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2020-10-15 02:02:13,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:02:13,050 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 86 [2020-10-15 02:02:13,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:13,052 INFO L225 Difference]: With dead ends: 53 [2020-10-15 02:02:13,052 INFO L226 Difference]: Without dead ends: 49 [2020-10-15 02:02:13,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=156, Invalid=1650, Unknown=0, NotChecked=0, Total=1806 [2020-10-15 02:02:13,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-15 02:02:13,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2020-10-15 02:02:13,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-15 02:02:13,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 61 transitions. [2020-10-15 02:02:13,059 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 61 transitions. Word has length 86 [2020-10-15 02:02:13,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:13,060 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 61 transitions. [2020-10-15 02:02:13,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-15 02:02:13,060 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2020-10-15 02:02:13,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-15 02:02:13,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:13,061 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:13,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 02:02:13,061 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:13,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:13,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1830896665, now seen corresponding path program 19 times [2020-10-15 02:02:13,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:13,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308047094] [2020-10-15 02:02:13,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:13,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:13,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:13,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-15 02:02:13,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:13,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-10-15 02:02:13,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:13,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:13,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-15 02:02:13,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:13,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 02:02:13,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:13,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:13,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:13,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:13,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:13,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:13,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:13,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:13,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:13,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:13,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:13,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:13,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:13,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:13,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:13,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:13,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:13,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:13,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-15 02:02:13,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:13,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:13,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:02:13,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:13,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:13,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:13,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:13,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:13,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:13,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:13,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:13,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-15 02:02:13,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:13,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:13,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:13,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:13,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:13,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:13,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:13,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:13,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:13,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:13,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:02:13,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:13,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:13,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:13,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:13,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:13,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:13,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:13,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:13,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:13,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:13,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:13,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:02:13,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:13,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:13,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:13,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:13,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:13,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:13,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:13,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:13,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:13,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:13,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:13,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:02:13,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:13,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:13,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:13,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:13,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:13,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:13,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:02:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:13,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:14,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:14,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:14,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:14,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-15 02:02:14,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:14,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:14,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:14,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:14,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:14,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:14,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:14,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:14,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:14,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:14,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:14,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:02:14,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:14,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:14,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:14,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:14,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:14,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:14,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:14,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:14,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:14,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:14,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:14,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:02:14,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:14,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:14,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:14,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:14,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:14,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:14,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:14,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:14,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:14,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:14,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:14,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:02:14,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:14,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:14,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:14,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:14,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:14,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:14,403 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 20 proven. 132 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-15 02:02:14,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308047094] [2020-10-15 02:02:14,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:14,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-15 02:02:14,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514769221] [2020-10-15 02:02:14,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-15 02:02:14,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:14,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-15 02:02:14,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=548, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:02:14,405 INFO L87 Difference]: Start difference. First operand 45 states and 61 transitions. Second operand 25 states. [2020-10-15 02:02:15,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:15,312 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2020-10-15 02:02:15,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:02:15,312 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 72 [2020-10-15 02:02:15,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:15,314 INFO L225 Difference]: With dead ends: 53 [2020-10-15 02:02:15,314 INFO L226 Difference]: Without dead ends: 49 [2020-10-15 02:02:15,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=129, Invalid=1131, Unknown=0, NotChecked=0, Total=1260 [2020-10-15 02:02:15,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-15 02:02:15,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2020-10-15 02:02:15,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-15 02:02:15,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2020-10-15 02:02:15,320 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 72 [2020-10-15 02:02:15,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:15,321 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-10-15 02:02:15,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-15 02:02:15,321 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2020-10-15 02:02:15,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 02:02:15,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:15,322 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:15,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-15 02:02:15,322 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:15,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:15,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1524702692, now seen corresponding path program 20 times [2020-10-15 02:02:15,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:15,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [565314693] [2020-10-15 02:02:15,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:15,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:15,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:15,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:02:15,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:15,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-10-15 02:02:15,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:15,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:15,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-15 02:02:15,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:15,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-15 02:02:15,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:15,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:15,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:15,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:15,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:15,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:15,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:15,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:15,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:15,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:15,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:15,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:15,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:15,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:15,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:15,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-15 02:02:15,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:15,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:15,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:02:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:15,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:15,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:15,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:15,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:15,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:15,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:15,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-15 02:02:15,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:15,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:15,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:15,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:15,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:15,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:16,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:16,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:16,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:16,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:16,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:16,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:02:16,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:16,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:16,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:16,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:16,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:16,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:16,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:16,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:16,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:16,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:16,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:16,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:02:16,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:16,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:16,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:16,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:16,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:16,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:16,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:16,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:16,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:16,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:02:16,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:16,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:16,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:16,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:16,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:16,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:16,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:02:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:16,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:16,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:16,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:16,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:16,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-15 02:02:16,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:16,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:16,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:16,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:16,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:16,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:16,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:16,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:16,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:16,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:16,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:16,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:02:16,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:16,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:16,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:16,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:16,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:16,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:16,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:16,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:16,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:16,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:16,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:16,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:02:16,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:16,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:16,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:16,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:16,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:16,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:16,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:16,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:16,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:16,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:16,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:16,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:02:16,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:16,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:16,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:16,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:16,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:16,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:16,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:16,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:16,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:02:16,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:16,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:16,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:16,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:16,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:16,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:16,683 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 15 proven. 157 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-15 02:02:16,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [565314693] [2020-10-15 02:02:16,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:16,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-15 02:02:16,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730133832] [2020-10-15 02:02:16,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 02:02:16,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:16,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 02:02:16,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:02:16,685 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 18 states. [2020-10-15 02:02:17,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:17,323 INFO L93 Difference]: Finished difference Result 53 states and 66 transitions. [2020-10-15 02:02:17,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:02:17,324 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 79 [2020-10-15 02:02:17,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:17,325 INFO L225 Difference]: With dead ends: 53 [2020-10-15 02:02:17,325 INFO L226 Difference]: Without dead ends: 49 [2020-10-15 02:02:17,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 22 SyntacticMatches, 8 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=715, Unknown=0, NotChecked=0, Total=812 [2020-10-15 02:02:17,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-15 02:02:17,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2020-10-15 02:02:17,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-15 02:02:17,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2020-10-15 02:02:17,331 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 79 [2020-10-15 02:02:17,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:17,332 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2020-10-15 02:02:17,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-15 02:02:17,332 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2020-10-15 02:02:17,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-15 02:02:17,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:17,333 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:17,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-15 02:02:17,333 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:17,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:17,334 INFO L82 PathProgramCache]: Analyzing trace with hash -180332919, now seen corresponding path program 21 times [2020-10-15 02:02:17,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:17,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747208844] [2020-10-15 02:02:17,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:17,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:17,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:17,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 02:02:17,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:17,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-10-15 02:02:17,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:17,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:17,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-15 02:02:17,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:17,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-15 02:02:17,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:17,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:17,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:17,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:17,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:17,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:17,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:17,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:17,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:17,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:17,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:17,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:17,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:17,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:17,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:17,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:17,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:17,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:17,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 02:02:17,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:17,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:17,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:02:17,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:17,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:17,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:17,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:17,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:17,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:17,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:17,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:17,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 02:02:17,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:17,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:17,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:17,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:17,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:17,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:18,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:18,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:18,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:18,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:18,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:18,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:02:18,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:18,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:18,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:18,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:18,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:18,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:02:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:18,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:18,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:18,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:02:18,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:18,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-15 02:02:18,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:18,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:18,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:02:18,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:18,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:02:18,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:18,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:18,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:18,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:18,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:02:18,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:18,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-15 02:02:18,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:18,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:18,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:02:18,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:18,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:02:18,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:18,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:18,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:18,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:18,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:18,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:18,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-15 02:02:18,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:18,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:18,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:02:18,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:18,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:02:18,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:18,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:18,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:18,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:18,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:18,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:18,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-15 02:02:18,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:18,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:18,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:18,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:18,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:18,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:19,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:19,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:19,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:19,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:19,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:19,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-15 02:02:19,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:19,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:19,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:19,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:19,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:19,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:19,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:19,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:19,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:02:19,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:19,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:19,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:19,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:19,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:19,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:19,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:19,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:19,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:19,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:19,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:19,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:02:19,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:19,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:19,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:19,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:19,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:19,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:19,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:19,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:19,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:19,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:19,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:19,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:02:19,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:19,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:19,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:19,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:19,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:19,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 33 proven. 191 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-10-15 02:02:19,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747208844] [2020-10-15 02:02:19,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:19,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-15 02:02:19,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686697609] [2020-10-15 02:02:19,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-15 02:02:19,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:19,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-15 02:02:19,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=697, Unknown=0, NotChecked=0, Total=756 [2020-10-15 02:02:19,535 INFO L87 Difference]: Start difference. First operand 43 states and 56 transitions. Second operand 28 states. [2020-10-15 02:02:20,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:20,904 INFO L93 Difference]: Finished difference Result 56 states and 72 transitions. [2020-10-15 02:02:20,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:02:20,905 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 86 [2020-10-15 02:02:20,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:20,906 INFO L225 Difference]: With dead ends: 56 [2020-10-15 02:02:20,907 INFO L226 Difference]: Without dead ends: 52 [2020-10-15 02:02:20,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=175, Invalid=1805, Unknown=0, NotChecked=0, Total=1980 [2020-10-15 02:02:20,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-15 02:02:20,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-15 02:02:20,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-15 02:02:20,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2020-10-15 02:02:20,914 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 86 [2020-10-15 02:02:20,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:20,914 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2020-10-15 02:02:20,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-15 02:02:20,914 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2020-10-15 02:02:20,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:02:20,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:20,916 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:20,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-15 02:02:20,916 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:20,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:20,917 INFO L82 PathProgramCache]: Analyzing trace with hash -313052920, now seen corresponding path program 22 times [2020-10-15 02:02:20,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:20,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822261864] [2020-10-15 02:02:20,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:20,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:21,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:21,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:02:21,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:21,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 752 [2020-10-15 02:02:21,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:21,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:21,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-15 02:02:21,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:21,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-15 02:02:21,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:21,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:21,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:21,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:21,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:21,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:21,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:21,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:21,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:21,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:21,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:21,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:21,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:21,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:21,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:21,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:21,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:21,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:21,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-15 02:02:21,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:21,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:02:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:21,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:21,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:21,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:21,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:21,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:21,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:21,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:02:21,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:21,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:21,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:21,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:21,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:21,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:21,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:21,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:21,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:21,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:02:21,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:21,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:21,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:21,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:21,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:21,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:22,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:22,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:22,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:22,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:22,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:22,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:02:22,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:22,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:22,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:22,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:22,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:22,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:22,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:02:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:22,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:22,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:22,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:02:22,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:22,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-15 02:02:22,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:22,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:22,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:02:22,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:22,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:02:22,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:22,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:22,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:22,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:22,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:02:22,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:22,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-15 02:02:22,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:22,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:22,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:02:22,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:22,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:02:22,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:22,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:22,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:22,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:22,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:22,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:22,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-15 02:02:22,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:22,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:22,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:02:22,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:22,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:02:22,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:22,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:22,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:23,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:23,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:23,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:23,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-15 02:02:23,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:23,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:23,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:23,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:23,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:23,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:23,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:23,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:23,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:23,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:23,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:23,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 02:02:23,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:23,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:23,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:23,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:23,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:23,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:23,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:23,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:23,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:02:23,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:23,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:23,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:23,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:23,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:23,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:23,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:23,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:23,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:23,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:23,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:23,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:02:23,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:23,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:23,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:23,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:23,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:23,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:23,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:23,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:23,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:02:23,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:23,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:23,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:23,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:23,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:23,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:23,671 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 64 proven. 240 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-10-15 02:02:23,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822261864] [2020-10-15 02:02:23,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:23,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-15 02:02:23,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512051435] [2020-10-15 02:02:23,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-15 02:02:23,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:23,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-15 02:02:23,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=926, Unknown=0, NotChecked=0, Total=992 [2020-10-15 02:02:23,673 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 32 states. [2020-10-15 02:02:25,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:25,553 INFO L93 Difference]: Finished difference Result 58 states and 75 transitions. [2020-10-15 02:02:25,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:02:25,553 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 93 [2020-10-15 02:02:25,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:25,555 INFO L225 Difference]: With dead ends: 58 [2020-10-15 02:02:25,555 INFO L226 Difference]: Without dead ends: 54 [2020-10-15 02:02:25,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 19 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=214, Invalid=2138, Unknown=0, NotChecked=0, Total=2352 [2020-10-15 02:02:25,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-15 02:02:25,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2020-10-15 02:02:25,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-15 02:02:25,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2020-10-15 02:02:25,562 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 93 [2020-10-15 02:02:25,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:25,563 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2020-10-15 02:02:25,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-15 02:02:25,563 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2020-10-15 02:02:25,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:02:25,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:25,564 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:25,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-15 02:02:25,564 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:25,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:25,565 INFO L82 PathProgramCache]: Analyzing trace with hash -789379885, now seen corresponding path program 23 times [2020-10-15 02:02:25,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:25,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821475351] [2020-10-15 02:02:25,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:25,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:26,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:26,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-15 02:02:26,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:26,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 703 [2020-10-15 02:02:26,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:26,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:26,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-15 02:02:26,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:26,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-15 02:02:26,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:26,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:26,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:26,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:26,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:26,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:26,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:26,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:26,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:26,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:26,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:26,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:26,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:26,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:26,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:26,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:26,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:26,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:26,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-15 02:02:26,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:26,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:26,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:02:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:26,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:26,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:26,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:26,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:26,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:26,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:26,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:02:26,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:26,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:26,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:26,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:26,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:26,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:26,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:26,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:26,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:26,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:26,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:26,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:02:26,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:26,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:26,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:26,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:26,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:26,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:26,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:26,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:26,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:26,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:26,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:26,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:02:26,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:26,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:26,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:26,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:26,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:26,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:26,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:26,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:26,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:26,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:26,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:26,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:02:26,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:26,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:26,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:26,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:26,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:26,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:26,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:02:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:26,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:27,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:27,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:02:27,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:27,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-10-15 02:02:27,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:27,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:27,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:02:27,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:27,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:02:27,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:27,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:27,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:27,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:27,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:02:27,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:27,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-15 02:02:27,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:27,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:02:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:27,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:02:27,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:27,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:27,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:27,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:27,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:27,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:27,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-15 02:02:27,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:27,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:27,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:02:27,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:27,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:02:27,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:27,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:27,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:27,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:27,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:27,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:27,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-15 02:02:27,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:27,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:27,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:27,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:27,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:27,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:28,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:28,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:28,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:28,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:28,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:28,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-15 02:02:28,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:28,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:28,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:28,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:28,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:28,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:28,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:28,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:28,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:28,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:28,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:28,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:02:28,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:28,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:28,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:28,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:28,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:28,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:28,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:28,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:28,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:28,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:28,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:28,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:02:28,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:28,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:28,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:28,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:28,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:28,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:28,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:28,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:28,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:28,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:02:28,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:28,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:28,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:28,666 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 48 proven. 264 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2020-10-15 02:02:28,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821475351] [2020-10-15 02:02:28,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:28,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-15 02:02:28,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799917288] [2020-10-15 02:02:28,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-15 02:02:28,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:28,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-15 02:02:28,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=1053, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 02:02:28,668 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 34 states. [2020-10-15 02:02:30,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:30,568 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2020-10-15 02:02:30,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:02:30,568 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 100 [2020-10-15 02:02:30,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:30,570 INFO L225 Difference]: With dead ends: 56 [2020-10-15 02:02:30,570 INFO L226 Difference]: Without dead ends: 52 [2020-10-15 02:02:30,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 20 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=191, Invalid=2359, Unknown=0, NotChecked=0, Total=2550 [2020-10-15 02:02:30,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-15 02:02:30,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2020-10-15 02:02:30,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-15 02:02:30,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2020-10-15 02:02:30,577 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 100 [2020-10-15 02:02:30,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:30,578 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2020-10-15 02:02:30,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-15 02:02:30,578 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2020-10-15 02:02:30,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:02:30,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:30,579 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:30,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-15 02:02:30,580 INFO L427 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:30,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:30,580 INFO L82 PathProgramCache]: Analyzing trace with hash -793317021, now seen corresponding path program 24 times [2020-10-15 02:02:30,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:30,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318293717] [2020-10-15 02:02:30,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:30,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:31,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:31,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-15 02:02:31,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:31,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 691 [2020-10-15 02:02:31,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:31,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:31,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-15 02:02:31,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:31,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-15 02:02:31,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:31,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:31,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:31,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:31,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:31,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:31,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:31,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:31,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:31,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:31,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:31,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:31,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:31,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:31,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:31,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:31,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:31,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:31,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:31,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-15 02:02:31,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:31,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:31,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:02:31,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:31,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:02:31,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:31,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:31,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:31,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:31,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:31,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:31,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-15 02:02:31,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:31,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:31,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:31,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:31,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:31,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:31,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:31,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:31,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:31,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:31,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:31,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-15 02:02:31,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:31,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:31,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:31,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:31,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:31,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:31,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:31,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:31,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:31,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:31,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:31,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:02:31,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:31,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:31,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:31,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:31,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:31,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:31,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:31,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:31,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:31,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:31,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:31,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 02:02:31,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:31,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:31,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:31,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:31,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:31,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:31,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:31,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:31,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:31,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:31,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:31,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:02:31,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:31,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:31,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:31,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:31,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:31,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:32,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:02:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:32,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:32,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:32,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:02:32,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:32,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-15 02:02:32,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:32,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:32,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:02:32,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:32,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:02:32,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:32,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:32,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:32,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:32,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:32,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:32,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-15 02:02:32,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:32,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:32,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:02:32,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:32,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:02:32,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:32,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:32,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:32,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:32,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:32,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:32,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-15 02:02:32,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:32,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:32,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:32,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:32,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:32,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:32,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:32,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:32,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:32,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:32,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:32,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-15 02:02:32,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:32,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:32,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:32,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:32,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:32,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:32,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:32,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:32,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:32,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:32,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:32,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:02:32,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:32,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:32,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:33,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:33,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:33,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:33,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:33,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:33,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:02:33,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:33,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:33,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:33,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:33,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:33,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:33,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:33,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:33,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:33,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:33,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:33,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:02:33,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:33,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:33,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:33,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:33,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:33,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:33,382 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 27 proven. 260 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2020-10-15 02:02:33,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318293717] [2020-10-15 02:02:33,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:33,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-15 02:02:33,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468708842] [2020-10-15 02:02:33,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-15 02:02:33,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:33,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-15 02:02:33,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=1050, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 02:02:33,385 INFO L87 Difference]: Start difference. First operand 46 states and 61 transitions. Second operand 34 states. [2020-10-15 02:02:35,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:35,198 INFO L93 Difference]: Finished difference Result 56 states and 76 transitions. [2020-10-15 02:02:35,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:02:35,200 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 100 [2020-10-15 02:02:35,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:35,201 INFO L225 Difference]: With dead ends: 56 [2020-10-15 02:02:35,201 INFO L226 Difference]: Without dead ends: 52 [2020-10-15 02:02:35,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 22 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=182, Invalid=2170, Unknown=0, NotChecked=0, Total=2352 [2020-10-15 02:02:35,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-15 02:02:35,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-15 02:02:35,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-15 02:02:35,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2020-10-15 02:02:35,208 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 100 [2020-10-15 02:02:35,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:35,208 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2020-10-15 02:02:35,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-15 02:02:35,209 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2020-10-15 02:02:35,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:02:35,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:35,210 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:35,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-15 02:02:35,210 INFO L427 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:35,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:35,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1159270008, now seen corresponding path program 25 times [2020-10-15 02:02:35,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:35,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2091966673] [2020-10-15 02:02:35,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:35,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:35,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:35,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:02:35,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:35,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 723 [2020-10-15 02:02:35,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:35,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:35,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-15 02:02:35,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:35,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-15 02:02:35,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:36,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:36,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:36,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:36,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:36,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:36,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:36,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:36,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:36,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:36,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:36,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:36,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:36,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:36,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:36,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:36,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:36,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-15 02:02:36,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:36,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:36,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:02:36,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:36,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:02:36,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:36,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:36,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:36,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:36,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:36,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:36,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-15 02:02:36,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:36,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:36,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:36,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:36,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:36,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:36,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:36,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:36,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:36,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:36,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:36,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-15 02:02:36,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:36,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:36,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:36,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:36,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:36,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:36,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:36,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:36,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:36,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:36,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:36,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:02:36,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:36,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:36,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:36,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:36,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:36,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:36,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:36,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:36,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:36,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:36,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:36,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:02:36,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:36,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:36,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:36,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:36,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:36,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:36,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:36,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:36,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:36,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:36,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:36,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:02:36,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:36,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:36,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:36,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:36,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:02:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:36,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:36,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:36,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:36,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:36,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-15 02:02:36,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:36,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:36,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:02:36,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:36,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:02:36,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:36,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:36,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:37,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:37,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:37,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:37,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-15 02:02:37,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:37,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:37,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:37,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:37,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:37,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:37,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:37,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:37,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:37,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-15 02:02:37,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:37,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:37,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:37,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:37,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:37,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:37,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:37,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:37,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:37,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:37,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:37,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-15 02:02:37,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:37,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:37,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:37,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:37,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:37,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:37,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:37,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:37,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:37,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:37,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:37,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:02:37,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:37,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:37,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:37,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:37,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:37,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:37,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:37,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:37,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:37,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:37,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:37,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:02:37,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:37,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:37,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:37,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:37,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:37,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:37,479 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 27 proven. 203 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2020-10-15 02:02:37,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2091966673] [2020-10-15 02:02:37,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:37,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-15 02:02:37,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237788027] [2020-10-15 02:02:37,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-15 02:02:37,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:37,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-15 02:02:37,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=458, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:02:37,481 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand 23 states. [2020-10-15 02:02:38,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:38,449 INFO L93 Difference]: Finished difference Result 56 states and 75 transitions. [2020-10-15 02:02:38,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:02:38,450 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 93 [2020-10-15 02:02:38,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:38,452 INFO L225 Difference]: With dead ends: 56 [2020-10-15 02:02:38,452 INFO L226 Difference]: Without dead ends: 52 [2020-10-15 02:02:38,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=125, Invalid=1135, Unknown=0, NotChecked=0, Total=1260 [2020-10-15 02:02:38,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-15 02:02:38,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-15 02:02:38,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-15 02:02:38,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2020-10-15 02:02:38,457 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 68 transitions. Word has length 93 [2020-10-15 02:02:38,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:38,458 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 68 transitions. [2020-10-15 02:02:38,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-15 02:02:38,458 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 68 transitions. [2020-10-15 02:02:38,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-15 02:02:38,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:38,459 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 12, 12, 12, 12, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:38,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-15 02:02:38,459 INFO L427 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:38,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:38,460 INFO L82 PathProgramCache]: Analyzing trace with hash -787811522, now seen corresponding path program 26 times [2020-10-15 02:02:38,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:38,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358305255] [2020-10-15 02:02:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:38,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:39,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:39,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 02:02:39,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:39,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 869 [2020-10-15 02:02:39,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:39,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:39,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-10-15 02:02:39,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:39,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-15 02:02:39,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:39,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:39,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:39,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:39,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:39,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:39,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:39,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:39,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:39,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:39,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:39,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:39,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:39,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:39,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:39,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:39,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:39,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:39,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-15 02:02:39,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:39,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:39,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:02:39,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:39,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:02:39,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:39,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:39,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:39,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:39,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:39,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:39,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-15 02:02:39,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:39,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:39,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:39,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:39,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:39,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:39,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:39,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:39,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:39,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:39,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:39,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-15 02:02:39,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:39,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:39,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:39,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:39,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:39,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:39,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:39,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:39,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:39,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:39,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:39,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:02:39,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:39,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:39,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:39,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:39,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:39,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:39,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:39,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:39,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:39,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:39,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:39,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:02:39,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:39,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:39,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:39,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:39,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:39,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:40,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:40,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:40,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:40,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:40,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:40,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:02:40,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:40,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:40,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:40,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:40,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:40,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:40,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:02:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:40,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:40,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:40,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:02:40,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:40,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-15 02:02:40,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:40,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:02:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:02:40,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:40,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:40,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:40,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:40,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:02:40,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:40,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-15 02:02:40,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:40,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:02:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:40,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:02:40,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:40,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:40,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:40,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:40,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:40,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:40,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-15 02:02:40,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:40,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:40,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:02:40,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:40,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:02:40,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:41,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:41,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:41,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:41,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:41,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:41,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-15 02:02:41,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:41,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:41,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:41,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:41,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:41,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:41,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:41,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:41,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:41,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:41,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:41,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-15 02:02:41,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:41,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:41,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:41,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:41,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:41,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:41,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:41,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:41,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-15 02:02:41,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:41,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:41,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:41,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:41,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:41,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:41,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:41,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:41,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:41,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:41,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:41,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-15 02:02:41,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:41,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:41,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:41,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:41,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:41,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:41,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:41,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:41,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:41,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:02:41,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:41,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:41,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:41,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:41,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:41,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:41,990 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 36 proven. 321 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2020-10-15 02:02:41,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358305255] [2020-10-15 02:02:41,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:41,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-15 02:02:41,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308711714] [2020-10-15 02:02:41,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-15 02:02:41,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:41,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-15 02:02:41,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=1120, Unknown=0, NotChecked=0, Total=1190 [2020-10-15 02:02:41,993 INFO L87 Difference]: Start difference. First operand 48 states and 68 transitions. Second operand 35 states. [2020-10-15 02:02:44,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:44,100 INFO L93 Difference]: Finished difference Result 56 states and 74 transitions. [2020-10-15 02:02:44,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:02:44,101 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 107 [2020-10-15 02:02:44,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:44,102 INFO L225 Difference]: With dead ends: 56 [2020-10-15 02:02:44,103 INFO L226 Difference]: Without dead ends: 52 [2020-10-15 02:02:44,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 20 SyntacticMatches, 9 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=193, Invalid=2459, Unknown=0, NotChecked=0, Total=2652 [2020-10-15 02:02:44,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-15 02:02:44,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-15 02:02:44,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-15 02:02:44,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2020-10-15 02:02:44,110 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 67 transitions. Word has length 107 [2020-10-15 02:02:44,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:44,110 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 67 transitions. [2020-10-15 02:02:44,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-15 02:02:44,110 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2020-10-15 02:02:44,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 02:02:44,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:44,111 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:44,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-15 02:02:44,112 INFO L427 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:44,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:44,112 INFO L82 PathProgramCache]: Analyzing trace with hash -505812782, now seen corresponding path program 27 times [2020-10-15 02:02:44,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:44,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879602348] [2020-10-15 02:02:44,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:44,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:44,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:44,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:02:44,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:44,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 405 [2020-10-15 02:02:44,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:44,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:44,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-15 02:02:44,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:44,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-15 02:02:44,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:44,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:44,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:44,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:44,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:44,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:44,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:44,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:44,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:44,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:44,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:44,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:44,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:44,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:44,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-15 02:02:44,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:44,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:44,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:02:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:02:44,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:44,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:44,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:44,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:44,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:44,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:44,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-15 02:02:44,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:44,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:44,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:44,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:44,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:44,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:44,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:44,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:44,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-15 02:02:44,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:44,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:44,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:44,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:44,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:44,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:45,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:45,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:45,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:45,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:45,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:45,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:02:45,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:45,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:45,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:45,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:45,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:45,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:45,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:45,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:45,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:02:45,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:45,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:45,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:45,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:45,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:45,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:45,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:45,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:45,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:45,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:45,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:45,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:02:45,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:45,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:45,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:45,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:45,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:45,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:45,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:02:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:45,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:45,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:45,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:45,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:45,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-15 02:02:45,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:45,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:45,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:45,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:45,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:45,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:45,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:45,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:45,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:45,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:45,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:45,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:02:45,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:45,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:45,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:45,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:45,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:45,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:45,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:45,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:45,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:45,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:02:45,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:45,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:45,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:45,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:45,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:45,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:45,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:45,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:45,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:45,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:45,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:45,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:02:45,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:45,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:45,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:45,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:45,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:45,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:45,880 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 31 proven. 173 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-10-15 02:02:45,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879602348] [2020-10-15 02:02:45,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:45,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-15 02:02:45,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187084507] [2020-10-15 02:02:45,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-15 02:02:45,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:45,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-15 02:02:45,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=753, Unknown=0, NotChecked=0, Total=812 [2020-10-15 02:02:45,882 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand 29 states. [2020-10-15 02:02:47,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:47,180 INFO L93 Difference]: Finished difference Result 56 states and 73 transitions. [2020-10-15 02:02:47,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:02:47,181 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 79 [2020-10-15 02:02:47,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:47,182 INFO L225 Difference]: With dead ends: 56 [2020-10-15 02:02:47,182 INFO L226 Difference]: Without dead ends: 52 [2020-10-15 02:02:47,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=162, Invalid=1560, Unknown=0, NotChecked=0, Total=1722 [2020-10-15 02:02:47,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-15 02:02:47,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-15 02:02:47,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-15 02:02:47,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 66 transitions. [2020-10-15 02:02:47,189 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 66 transitions. Word has length 79 [2020-10-15 02:02:47,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:47,189 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 66 transitions. [2020-10-15 02:02:47,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-15 02:02:47,189 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 66 transitions. [2020-10-15 02:02:47,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-15 02:02:47,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:47,190 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:47,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-15 02:02:47,191 INFO L427 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:47,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:47,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1525719705, now seen corresponding path program 28 times [2020-10-15 02:02:47,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:47,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961386637] [2020-10-15 02:02:47,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:47,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:47,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:47,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 02:02:47,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:47,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-10-15 02:02:47,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:47,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:47,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-15 02:02:47,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:47,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-15 02:02:47,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:47,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:47,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:47,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:47,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:47,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:47,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:47,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:47,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:47,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:47,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:47,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:47,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:47,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:47,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:47,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:47,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:47,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:47,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-15 02:02:47,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:47,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:47,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:02:47,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:47,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:02:47,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:47,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:47,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:47,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:47,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:47,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:47,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-15 02:02:47,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:47,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:47,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:47,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:47,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:47,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:48,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:48,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:48,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:48,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:48,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:48,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:02:48,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:48,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:48,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:48,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:48,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:48,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:48,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:48,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:48,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:48,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:48,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:48,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:02:48,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:48,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:48,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:48,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:48,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:48,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:48,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:48,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:48,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:48,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:48,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:48,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:02:48,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:48,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:48,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:48,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:48,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:48,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:48,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:48,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:48,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:48,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:48,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:48,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:02:48,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:48,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:48,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:48,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:48,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:48,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:48,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:02:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:48,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:48,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:48,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:48,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:48,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-15 02:02:48,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:48,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:48,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:48,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:48,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:48,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:48,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:48,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:48,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:48,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:48,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-15 02:02:48,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:48,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:48,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:48,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:48,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:48,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:48,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:48,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:48,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:48,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:48,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:48,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 02:02:48,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:48,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:48,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:48,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:48,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:48,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:48,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:49,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:49,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:49,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:49,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:49,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:02:49,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:49,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:49,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:49,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:49,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:49,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:49,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:49,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:49,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:49,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:49,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:49,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:02:49,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:49,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:49,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:49,192 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 39 proven. 204 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-15 02:02:49,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961386637] [2020-10-15 02:02:49,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:49,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-15 02:02:49,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164282436] [2020-10-15 02:02:49,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-15 02:02:49,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:49,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-15 02:02:49,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=809, Unknown=0, NotChecked=0, Total=870 [2020-10-15 02:02:49,194 INFO L87 Difference]: Start difference. First operand 48 states and 66 transitions. Second operand 30 states. [2020-10-15 02:02:50,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:50,512 INFO L93 Difference]: Finished difference Result 56 states and 72 transitions. [2020-10-15 02:02:50,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:02:50,513 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 86 [2020-10-15 02:02:50,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:50,514 INFO L225 Difference]: With dead ends: 56 [2020-10-15 02:02:50,515 INFO L226 Difference]: Without dead ends: 52 [2020-10-15 02:02:50,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 17 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=165, Invalid=1641, Unknown=0, NotChecked=0, Total=1806 [2020-10-15 02:02:50,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-15 02:02:50,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-15 02:02:50,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-15 02:02:50,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2020-10-15 02:02:50,521 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 86 [2020-10-15 02:02:50,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:50,521 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2020-10-15 02:02:50,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-15 02:02:50,522 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2020-10-15 02:02:50,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-15 02:02:50,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:50,523 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:50,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-15 02:02:50,523 INFO L427 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:50,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:50,523 INFO L82 PathProgramCache]: Analyzing trace with hash -439702833, now seen corresponding path program 29 times [2020-10-15 02:02:50,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:50,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195714597] [2020-10-15 02:02:50,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:50,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:50,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:50,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-15 02:02:50,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:50,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-15 02:02:50,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:50,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-15 02:02:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:50,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-15 02:02:50,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:50,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:50,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:50,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:50,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:50,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:50,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:50,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:50,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:50,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:50,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:50,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:50,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:50,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:50,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:50,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:50,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:50,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:50,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-15 02:02:50,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:50,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:50,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:02:50,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:50,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:02:50,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:51,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:51,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:51,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:51,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:51,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:51,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-15 02:02:51,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:51,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:51,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:51,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:51,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:51,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:51,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:51,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:51,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:51,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:51,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:51,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-15 02:02:51,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:51,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:51,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:51,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:51,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:51,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:51,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:51,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:51,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:51,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:51,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 02:02:51,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:51,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:51,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:51,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:51,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:51,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:51,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:51,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:02:51,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:51,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:51,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:51,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:51,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:51,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:51,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:51,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:51,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:51,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:51,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:51,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:02:51,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:51,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:51,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:51,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:51,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:51,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:51,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:02:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:51,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:51,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:51,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:51,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:51,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 02:02:51,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:51,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:51,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:51,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:51,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:51,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:51,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:51,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:51,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:51,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:51,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:51,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:02:51,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:51,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:51,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:51,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:51,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:51,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:51,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:51,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:51,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:51,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:51,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:51,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:02:51,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:51,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:51,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:51,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:51,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:51,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:51,949 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 5 proven. 132 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-15 02:02:51,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195714597] [2020-10-15 02:02:51,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:51,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-15 02:02:51,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123449725] [2020-10-15 02:02:51,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-15 02:02:51,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:51,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-15 02:02:51,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2020-10-15 02:02:51,951 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 24 states. [2020-10-15 02:02:53,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:53,038 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2020-10-15 02:02:53,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:02:53,040 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 72 [2020-10-15 02:02:53,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:53,042 INFO L225 Difference]: With dead ends: 56 [2020-10-15 02:02:53,042 INFO L226 Difference]: Without dead ends: 52 [2020-10-15 02:02:53,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 15 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=125, Invalid=1207, Unknown=0, NotChecked=0, Total=1332 [2020-10-15 02:02:53,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-15 02:02:53,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2020-10-15 02:02:53,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-15 02:02:53,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2020-10-15 02:02:53,057 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 72 [2020-10-15 02:02:53,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:53,057 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2020-10-15 02:02:53,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-15 02:02:53,058 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2020-10-15 02:02:53,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:02:53,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:53,059 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:53,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-15 02:02:53,059 INFO L427 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:53,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:53,059 INFO L82 PathProgramCache]: Analyzing trace with hash 365189506, now seen corresponding path program 30 times [2020-10-15 02:02:53,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:53,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136030544] [2020-10-15 02:02:53,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:53,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:53,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:53,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:02:53,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:53,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 592 [2020-10-15 02:02:53,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:53,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:53,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-15 02:02:53,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:53,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-15 02:02:53,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:53,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:53,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:53,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:53,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:53,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:53,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:53,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:53,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:53,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:53,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:53,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:53,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:53,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:53,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:53,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:53,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:53,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:53,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:02:53,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:53,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:53,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:02:53,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:53,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:53,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:53,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:53,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:53,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:53,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:53,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:53,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:02:53,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:53,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:53,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:53,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:53,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:53,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:53,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:53,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:53,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:53,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:53,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:53,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:02:53,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:53,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:53,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:53,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:53,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:53,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:53,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:02:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:53,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:54,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:54,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:02:54,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:54,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-15 02:02:54,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:54,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-15 02:02:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 02:02:54,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:54,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:54,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:54,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:54,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:02:54,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:54,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-15 02:02:54,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:54,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:54,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:02:54,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:54,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:02:54,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:54,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:54,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:54,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:54,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:02:54,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:54,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-15 02:02:54,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:54,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:54,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:02:54,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:54,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:02:54,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:54,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:54,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:54,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:54,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:02:54,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:54,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-15 02:02:54,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:54,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:54,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:02:54,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:54,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:02:54,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:55,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:55,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:55,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:55,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:02:55,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:55,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-15 02:02:55,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:55,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:55,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:02:55,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:55,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:02:55,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:55,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:55,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:55,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:55,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:55,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:55,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-15 02:02:55,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:55,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:55,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:02:55,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:55,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:02:55,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:55,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:55,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:55,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:55,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:55,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 02:02:55,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:55,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:55,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:55,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:55,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:55,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:55,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:55,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:55,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:55,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:55,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:55,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:02:55,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:55,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:55,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:55,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:55,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:55,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:55,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:55,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:55,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:55,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:55,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:55,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:02:55,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:55,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:55,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:55,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:55,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:55,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:55,880 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 56 proven. 212 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2020-10-15 02:02:55,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136030544] [2020-10-15 02:02:55,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:02:55,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-15 02:02:55,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371192544] [2020-10-15 02:02:55,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-15 02:02:55,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:02:55,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-15 02:02:55,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=925, Unknown=0, NotChecked=0, Total=992 [2020-10-15 02:02:55,882 INFO L87 Difference]: Start difference. First operand 46 states and 61 transitions. Second operand 32 states. [2020-10-15 02:02:57,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:02:57,792 INFO L93 Difference]: Finished difference Result 59 states and 77 transitions. [2020-10-15 02:02:57,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 02:02:57,794 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 93 [2020-10-15 02:02:57,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:02:57,795 INFO L225 Difference]: With dead ends: 59 [2020-10-15 02:02:57,795 INFO L226 Difference]: Without dead ends: 55 [2020-10-15 02:02:57,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 19 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=199, Invalid=2351, Unknown=0, NotChecked=0, Total=2550 [2020-10-15 02:02:57,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-15 02:02:57,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-10-15 02:02:57,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-15 02:02:57,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2020-10-15 02:02:57,803 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 93 [2020-10-15 02:02:57,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:02:57,803 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2020-10-15 02:02:57,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-15 02:02:57,804 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2020-10-15 02:02:57,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:02:57,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:02:57,805 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:02:57,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-15 02:02:57,805 INFO L427 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:02:57,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:02:57,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1104773667, now seen corresponding path program 31 times [2020-10-15 02:02:57,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:02:57,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [575351705] [2020-10-15 02:02:57,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:02:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:57,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:58,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:58,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-15 02:02:58,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:58,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 701 [2020-10-15 02:02:58,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:58,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:58,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-15 02:02:58,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:02:58,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-15 02:02:58,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:58,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:02:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:58,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:58,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:58,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:02:58,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:58,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:02:58,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:58,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:58,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:02:58,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:58,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:02:58,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:58,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:02:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:58,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:58,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:58,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:02:58,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:58,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-15 02:02:58,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:58,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:02:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:58,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:02:58,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:58,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:58,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:58,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:58,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:02:58,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:58,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:02:58,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:58,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:02:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:02:58,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:58,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:58,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:58,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:58,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:02:58,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:58,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:02:58,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:58,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:58,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:02:58,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:58,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:02:58,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:58,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:58,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:58,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:58,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:02:58,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:58,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:02:58,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:58,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:58,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:02:58,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:02:58,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:58,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:02:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:59,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:59,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:59,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:02:59,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:59,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-15 02:02:59,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:59,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:59,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-15 02:02:59,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:59,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 02:02:59,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:59,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:59,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:59,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:59,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:02:59,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:59,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-15 02:02:59,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:59,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:59,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:02:59,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:59,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:02:59,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:02:59,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:02:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:02:59,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:02:59,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:02:59,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:02:59,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:02:59,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-15 02:02:59,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:02:59,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:02:59,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:02:59,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:02:59,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:02:59,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:00,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:00,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:00,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:00,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:00,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:00,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-15 02:03:00,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:00,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:00,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:03:00,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:00,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:00,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:00,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:00,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:00,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:00,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:00,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:00,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-15 02:03:00,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:00,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:00,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:00,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:00,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:00,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:00,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:00,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:00,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:00,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-15 02:03:00,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:00,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:00,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:00,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:00,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:00,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:03:00,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:00,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:00,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:00,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:00,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:00,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:03:00,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:00,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:00,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:00,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:00,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:00,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:00,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:00,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:00,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:00,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:00,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:00,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:03:00,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:00,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:00,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:00,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:01,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:01,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:01,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:01,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:01,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:01,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:03:01,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:01,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:01,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:01,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:01,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:01,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 88 proven. 248 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2020-10-15 02:03:01,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [575351705] [2020-10-15 02:03:01,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:03:01,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-15 02:03:01,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993907771] [2020-10-15 02:03:01,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-15 02:03:01,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:03:01,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-15 02:03:01,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=1118, Unknown=0, NotChecked=0, Total=1190 [2020-10-15 02:03:01,311 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand 35 states. [2020-10-15 02:03:03,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:03:03,556 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2020-10-15 02:03:03,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 02:03:03,557 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 100 [2020-10-15 02:03:03,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:03:03,559 INFO L225 Difference]: With dead ends: 61 [2020-10-15 02:03:03,559 INFO L226 Difference]: Without dead ends: 57 [2020-10-15 02:03:03,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 18 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=223, Invalid=2639, Unknown=0, NotChecked=0, Total=2862 [2020-10-15 02:03:03,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-15 02:03:03,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2020-10-15 02:03:03,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-15 02:03:03,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2020-10-15 02:03:03,566 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 100 [2020-10-15 02:03:03,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:03:03,566 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2020-10-15 02:03:03,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-15 02:03:03,567 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2020-10-15 02:03:03,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-15 02:03:03,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:03:03,568 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 12, 12, 12, 12, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:03:03,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-15 02:03:03,568 INFO L427 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:03:03,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:03:03,568 INFO L82 PathProgramCache]: Analyzing trace with hash 560522232, now seen corresponding path program 32 times [2020-10-15 02:03:03,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:03:03,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754583333] [2020-10-15 02:03:03,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:03:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:03,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:04,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:04,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 02:03:04,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:04,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 841 [2020-10-15 02:03:04,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:04,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:04,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-10-15 02:03:04,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:03:04,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-15 02:03:04,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:04,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:03:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:04,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:04,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:04,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:03:04,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:04,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:03:04,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:04,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:03:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:03:04,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:04,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:03:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:04,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:04,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:04,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:04,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:04,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-15 02:03:04,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:04,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:03:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:04,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:04,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:04,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:04,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:04,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:04,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:04,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-15 02:03:04,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:04,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:04,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:04,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:04,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:04,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:04,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:04,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:04,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:04,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:04,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:04,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 02:03:04,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:04,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:04,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:04,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:04,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:04,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:04,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:04,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:04,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:04,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:04,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:04,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:03:04,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:04,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:04,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:04,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:04,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:04,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:05,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:05,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:05,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:05,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:05,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:05,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:03:05,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:05,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:05,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:05,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:05,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:05,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:05,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:03:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:05,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:05,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:05,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:03:05,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:05,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-10-15 02:03:05,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:05,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:05,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-15 02:03:05,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:05,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 02:03:05,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:05,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:05,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:05,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:05,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:03:05,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:05,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-15 02:03:05,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:05,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:05,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:03:05,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:05,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:03:05,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:05,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:05,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:06,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:06,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:03:06,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:06,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-15 02:03:06,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:06,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:06,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:03:06,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:06,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:03:06,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:06,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:06,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:06,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:06,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:06,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:06,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-15 02:03:06,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:06,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:06,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:03:06,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:06,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:06,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:06,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:06,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:06,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:06,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:06,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:06,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-15 02:03:06,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:06,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:06,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:06,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:06,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:06,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:06,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:06,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:06,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:06,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:06,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:06,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:03:06,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:06,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:06,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:06,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:06,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:06,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:06,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:06,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:06,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:03:06,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:06,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:06,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:06,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:06,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:06,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:07,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:07,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:07,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:07,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:07,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:07,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 02:03:07,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:07,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:07,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:07,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:07,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:07,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:07,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:07,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:07,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:07,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:07,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:07,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:03:07,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:07,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:07,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:07,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:07,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:07,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:07,490 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 87 proven. 342 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2020-10-15 02:03:07,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754583333] [2020-10-15 02:03:07,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:03:07,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-15 02:03:07,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226937393] [2020-10-15 02:03:07,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-15 02:03:07,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:03:07,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-15 02:03:07,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1325, Unknown=0, NotChecked=0, Total=1406 [2020-10-15 02:03:07,492 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand 38 states. [2020-10-15 02:03:10,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:03:10,008 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2020-10-15 02:03:10,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 02:03:10,009 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 107 [2020-10-15 02:03:10,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:03:10,011 INFO L225 Difference]: With dead ends: 61 [2020-10-15 02:03:10,011 INFO L226 Difference]: Without dead ends: 57 [2020-10-15 02:03:10,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 21 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=267, Invalid=2925, Unknown=0, NotChecked=0, Total=3192 [2020-10-15 02:03:10,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-15 02:03:10,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2020-10-15 02:03:10,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-15 02:03:10,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2020-10-15 02:03:10,017 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 107 [2020-10-15 02:03:10,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:03:10,017 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2020-10-15 02:03:10,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-15 02:03:10,017 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2020-10-15 02:03:10,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-15 02:03:10,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:03:10,018 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 13, 13, 13, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:03:10,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-15 02:03:10,019 INFO L427 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:03:10,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:03:10,019 INFO L82 PathProgramCache]: Analyzing trace with hash -330893523, now seen corresponding path program 33 times [2020-10-15 02:03:10,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:03:10,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714560864] [2020-10-15 02:03:10,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:03:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:10,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:10,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:10,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-15 02:03:10,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:10,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 952 [2020-10-15 02:03:10,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:10,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:10,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 63 [2020-10-15 02:03:10,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:03:10,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-15 02:03:10,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:11,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:03:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:11,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:11,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:11,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:03:11,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:11,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:03:11,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:11,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:11,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:03:11,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:11,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:03:11,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:11,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:03:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:11,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:11,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:11,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:11,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:11,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-15 02:03:11,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:11,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:11,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:03:11,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:11,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:11,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:11,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:11,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:11,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:11,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:11,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:11,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-15 02:03:11,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:11,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:11,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:11,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:11,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:11,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:11,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:11,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:11,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 02:03:11,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:11,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:11,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:11,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:11,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:11,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:11,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:11,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:11,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:11,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:11,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:11,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 02:03:11,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:11,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:11,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:11,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:11,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:11,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:11,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:11,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:11,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:11,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:11,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:11,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:03:11,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:11,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:11,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:11,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:11,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:11,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:11,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:11,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:11,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:03:11,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:11,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:11,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:11,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:03:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:11,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:12,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:12,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:03:12,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:12,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-10-15 02:03:12,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:12,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:12,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-15 02:03:12,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:12,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 02:03:12,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:12,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:12,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:12,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:12,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:03:12,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:12,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-15 02:03:12,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:12,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:12,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:03:12,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:12,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:03:12,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:12,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:12,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:12,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:12,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:12,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:03:12,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:12,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-15 02:03:12,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:12,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:12,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:03:12,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:12,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:03:12,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:12,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:12,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:12,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:12,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:12,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:12,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-15 02:03:12,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:12,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:12,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:03:12,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:12,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:12,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:13,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:13,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:13,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:13,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:13,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:13,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-15 02:03:13,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:13,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:13,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:13,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:13,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:13,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:13,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:13,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:13,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:03:13,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:13,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:13,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:13,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:13,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:13,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:13,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:13,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:13,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:13,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:13,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:13,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:03:13,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:13,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:13,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:13,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:13,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:13,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:13,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:13,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:13,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:13,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:03:13,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:13,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:13,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:13,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:13,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:13,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:13,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:13,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:13,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:13,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:13,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:13,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:03:13,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:13,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:13,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:13,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:13,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:13,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 88 proven. 351 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2020-10-15 02:03:14,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714560864] [2020-10-15 02:03:14,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:03:14,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-15 02:03:14,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426430680] [2020-10-15 02:03:14,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-15 02:03:14,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:03:14,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-15 02:03:14,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1400, Unknown=0, NotChecked=0, Total=1482 [2020-10-15 02:03:14,021 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand 39 states. [2020-10-15 02:03:16,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:03:16,376 INFO L93 Difference]: Finished difference Result 59 states and 76 transitions. [2020-10-15 02:03:16,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 02:03:16,377 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 114 [2020-10-15 02:03:16,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:03:16,379 INFO L225 Difference]: With dead ends: 59 [2020-10-15 02:03:16,379 INFO L226 Difference]: Without dead ends: 55 [2020-10-15 02:03:16,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 23 SyntacticMatches, 6 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=237, Invalid=3069, Unknown=0, NotChecked=0, Total=3306 [2020-10-15 02:03:16,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-15 02:03:16,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2020-10-15 02:03:16,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-15 02:03:16,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 66 transitions. [2020-10-15 02:03:16,386 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 66 transitions. Word has length 114 [2020-10-15 02:03:16,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:03:16,386 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 66 transitions. [2020-10-15 02:03:16,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-15 02:03:16,386 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2020-10-15 02:03:16,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-15 02:03:16,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:03:16,387 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 13, 13, 13, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:03:16,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-15 02:03:16,388 INFO L427 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:03:16,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:03:16,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1907807715, now seen corresponding path program 34 times [2020-10-15 02:03:16,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:03:16,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412588922] [2020-10-15 02:03:16,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:03:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:16,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:17,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:17,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-15 02:03:17,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:17,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 979 [2020-10-15 02:03:17,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:17,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 63 [2020-10-15 02:03:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:03:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-15 02:03:17,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:17,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:03:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:17,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:17,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:17,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:03:17,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:17,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:03:17,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:17,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:03:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:03:17,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:17,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:03:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:17,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:17,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:17,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:03:17,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:17,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-15 02:03:17,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:17,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:17,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:03:17,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:17,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:03:17,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:17,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:17,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:17,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:17,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:17,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:17,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-15 02:03:17,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:17,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:17,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:03:17,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:17,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:17,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:17,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:17,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:17,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:17,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:17,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:17,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-15 02:03:17,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:17,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:17,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:17,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:18,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:18,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:18,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:18,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:18,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-15 02:03:18,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:18,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:18,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:18,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:18,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:18,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:18,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:18,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:18,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:18,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:18,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:18,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:03:18,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:18,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:18,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:18,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:18,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:18,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:18,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:18,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:18,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:18,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:18,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:18,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:03:18,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:18,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:18,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:18,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:18,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:18,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:18,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:18,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:18,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:18,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:18,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:18,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:03:18,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:18,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:18,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:18,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:18,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:18,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:18,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:03:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:18,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:18,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:18,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:03:18,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:18,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-15 02:03:18,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:18,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:18,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:03:18,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:18,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:03:18,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:18,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:18,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:18,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:18,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:03:18,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:18,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-15 02:03:18,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:18,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:03:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:03:18,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:19,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:19,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:19,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:19,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:19,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:19,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-15 02:03:19,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:19,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:19,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:03:19,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:19,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:19,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:19,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:19,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:19,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:19,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:19,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:19,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-15 02:03:19,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:19,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:19,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:19,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:19,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:19,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:19,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:19,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:19,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:19,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:19,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:19,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-15 02:03:19,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:19,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:19,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:19,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:19,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:19,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:19,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:19,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:19,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:19,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:19,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:19,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 02:03:19,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:19,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:19,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:19,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:19,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:19,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:20,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:20,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:20,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:20,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:20,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:20,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:03:20,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:20,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:20,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:20,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:20,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:20,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:20,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:20,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:20,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:03:20,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:20,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:20,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:20,425 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 53 proven. 384 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2020-10-15 02:03:20,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412588922] [2020-10-15 02:03:20,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:03:20,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-15 02:03:20,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108513249] [2020-10-15 02:03:20,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-15 02:03:20,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:03:20,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-15 02:03:20,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1327, Unknown=0, NotChecked=0, Total=1406 [2020-10-15 02:03:20,427 INFO L87 Difference]: Start difference. First operand 49 states and 66 transitions. Second operand 38 states. [2020-10-15 02:03:22,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:03:22,819 INFO L93 Difference]: Finished difference Result 59 states and 82 transitions. [2020-10-15 02:03:22,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:03:22,821 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 114 [2020-10-15 02:03:22,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:03:22,822 INFO L225 Difference]: With dead ends: 59 [2020-10-15 02:03:22,822 INFO L226 Difference]: Without dead ends: 55 [2020-10-15 02:03:22,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 22 SyntacticMatches, 8 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=219, Invalid=2751, Unknown=0, NotChecked=0, Total=2970 [2020-10-15 02:03:22,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-15 02:03:22,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-10-15 02:03:22,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-15 02:03:22,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 75 transitions. [2020-10-15 02:03:22,828 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 75 transitions. Word has length 114 [2020-10-15 02:03:22,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:03:22,829 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 75 transitions. [2020-10-15 02:03:22,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-15 02:03:22,829 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 75 transitions. [2020-10-15 02:03:22,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-15 02:03:22,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:03:22,830 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:03:22,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-15 02:03:22,830 INFO L427 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:03:22,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:03:22,831 INFO L82 PathProgramCache]: Analyzing trace with hash -256846799, now seen corresponding path program 35 times [2020-10-15 02:03:22,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:03:22,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1877104946] [2020-10-15 02:03:22,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:03:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:22,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:23,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:23,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 02:03:23,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:23,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-10-15 02:03:23,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:23,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:23,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-15 02:03:23,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:03:23,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-15 02:03:23,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:23,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:03:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:23,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:23,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:23,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:03:23,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:23,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:03:23,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:23,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:23,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:03:23,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:23,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:03:23,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:23,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:03:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:23,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:23,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:23,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:03:23,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:23,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-15 02:03:23,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:23,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:23,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:03:23,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:23,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:03:23,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:23,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:23,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:23,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:23,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:23,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:23,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-15 02:03:23,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:23,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:03:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:23,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:23,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:23,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:23,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:23,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:23,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:23,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:23,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-15 02:03:23,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:23,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:23,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:23,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:23,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:23,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:03:23,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:23,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:24,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:24,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:24,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:24,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-15 02:03:24,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:24,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:24,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:24,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:24,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:24,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:24,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:24,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:24,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-15 02:03:24,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:24,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:24,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:24,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:24,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:24,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:24,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:24,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:24,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:24,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:24,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:24,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:03:24,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:24,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:24,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:24,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:24,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:24,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:24,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:24,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:24,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:03:24,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:24,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:24,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:24,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:24,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:24,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:24,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:03:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:24,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:24,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:24,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:24,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:24,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 02:03:24,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:24,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:24,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:24,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:24,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:24,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:24,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:24,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:24,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:24,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:24,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:24,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 02:03:24,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:24,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:24,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:24,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:24,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:24,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:24,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:24,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:24,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:24,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:24,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:24,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:03:24,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:24,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:24,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:24,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:24,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:24,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:25,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:25,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:25,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:25,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:25,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:25,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:03:25,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:25,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:25,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:25,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:25,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:25,241 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 7 proven. 220 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-10-15 02:03:25,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1877104946] [2020-10-15 02:03:25,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:03:25,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-15 02:03:25,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062990072] [2020-10-15 02:03:25,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-15 02:03:25,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:03:25,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-15 02:03:25,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=806, Unknown=0, NotChecked=0, Total=870 [2020-10-15 02:03:25,242 INFO L87 Difference]: Start difference. First operand 51 states and 75 transitions. Second operand 30 states. [2020-10-15 02:03:26,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:03:26,958 INFO L93 Difference]: Finished difference Result 59 states and 81 transitions. [2020-10-15 02:03:26,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:03:26,959 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 86 [2020-10-15 02:03:26,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:03:26,960 INFO L225 Difference]: With dead ends: 59 [2020-10-15 02:03:26,960 INFO L226 Difference]: Without dead ends: 55 [2020-10-15 02:03:26,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 16 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=182, Invalid=1798, Unknown=0, NotChecked=0, Total=1980 [2020-10-15 02:03:26,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-15 02:03:26,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-10-15 02:03:26,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-15 02:03:26,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2020-10-15 02:03:26,967 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 86 [2020-10-15 02:03:26,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:03:26,967 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2020-10-15 02:03:26,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-15 02:03:26,967 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2020-10-15 02:03:26,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:03:26,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:03:26,968 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:03:26,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-15 02:03:26,969 INFO L427 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:03:26,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:03:26,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1343946330, now seen corresponding path program 36 times [2020-10-15 02:03:26,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:03:26,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428234095] [2020-10-15 02:03:26,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:03:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:26,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:27,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:27,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 02:03:27,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:27,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-10-15 02:03:27,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:27,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:27,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-15 02:03:27,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:03:27,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-15 02:03:27,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:27,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:03:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:27,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:27,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:27,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:03:27,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:27,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:03:27,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:27,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:27,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:03:27,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:27,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:03:27,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:27,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:03:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:27,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:27,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:27,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:03:27,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:27,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-15 02:03:27,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:27,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:27,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:03:27,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:27,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:03:27,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:27,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:27,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:27,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:27,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:27,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:27,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-15 02:03:27,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:27,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:27,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:03:27,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:27,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:27,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:28,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:28,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:28,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:28,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:28,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:28,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-15 02:03:28,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:28,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:28,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:28,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:28,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:28,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:28,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:28,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:28,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:28,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:28,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:28,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-15 02:03:28,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:28,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:28,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:28,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:28,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:28,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:28,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:28,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:28,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:28,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:03:28,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:28,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:28,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:28,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:28,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:28,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:28,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:28,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:28,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:28,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:28,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:28,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:03:28,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:28,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:28,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:28,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:28,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:28,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:28,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:28,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:28,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:28,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:28,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:28,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:03:28,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:28,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:28,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:28,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:28,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:03:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:28,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:28,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:28,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:28,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:28,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-15 02:03:28,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:28,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:28,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:28,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:28,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:28,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:28,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:28,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:28,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:28,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:28,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:28,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-15 02:03:28,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:28,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:28,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:28,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:28,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:28,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:29,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:29,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:29,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:29,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:29,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:29,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:03:29,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:29,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:29,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:29,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:29,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:29,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:29,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:29,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:29,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:29,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:03:29,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:29,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:29,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:29,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:29,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:29,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:29,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:29,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:29,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:29,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:29,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:29,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:03:29,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:29,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:29,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:29,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:29,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:29,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:29,449 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 11 proven. 206 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2020-10-15 02:03:29,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428234095] [2020-10-15 02:03:29,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:03:29,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-15 02:03:29,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74545262] [2020-10-15 02:03:29,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-15 02:03:29,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:03:29,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-15 02:03:29,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=810, Unknown=0, NotChecked=0, Total=870 [2020-10-15 02:03:29,452 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 30 states. [2020-10-15 02:03:31,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:03:31,223 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2020-10-15 02:03:31,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:03:31,224 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 93 [2020-10-15 02:03:31,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:03:31,225 INFO L225 Difference]: With dead ends: 59 [2020-10-15 02:03:31,226 INFO L226 Difference]: Without dead ends: 55 [2020-10-15 02:03:31,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 19 SyntacticMatches, 7 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=142, Invalid=1838, Unknown=0, NotChecked=0, Total=1980 [2020-10-15 02:03:31,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-15 02:03:31,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-10-15 02:03:31,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-15 02:03:31,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2020-10-15 02:03:31,232 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 93 [2020-10-15 02:03:31,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:03:31,233 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2020-10-15 02:03:31,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-15 02:03:31,233 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2020-10-15 02:03:31,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-15 02:03:31,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:03:31,234 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:03:31,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-15 02:03:31,234 INFO L427 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:03:31,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:03:31,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1776686958, now seen corresponding path program 37 times [2020-10-15 02:03:31,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:03:31,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136520620] [2020-10-15 02:03:31,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:03:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:31,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:32,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:32,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-15 02:03:32,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:32,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1130 [2020-10-15 02:03:32,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:32,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:32,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 67 [2020-10-15 02:03:32,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:03:32,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-15 02:03:32,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:32,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:03:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:32,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:32,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:32,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:03:32,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:32,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:03:32,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:32,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:32,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:03:32,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:32,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:03:32,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:32,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:03:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:32,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:32,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:32,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:03:32,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:32,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-15 02:03:32,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:32,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:32,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:03:32,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:32,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:03:32,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:32,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:32,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:32,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:32,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:32,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:32,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-15 02:03:32,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:32,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:32,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:03:32,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:32,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:32,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:32,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:32,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:32,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:32,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:32,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:32,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-15 02:03:32,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:32,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:32,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:32,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:32,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:32,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:33,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:33,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:33,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:33,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:33,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:33,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-15 02:03:33,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:33,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:33,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:33,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:33,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:33,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:33,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:33,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:33,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:03:33,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:33,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:33,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:33,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:33,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:33,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:33,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:33,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:33,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:33,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:33,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:33,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:03:33,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:33,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:33,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:33,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:33,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:33,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:33,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:33,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:33,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:33,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:33,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:33,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:03:33,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:33,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:33,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:33,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:33,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:33,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:33,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:03:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:33,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:33,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:33,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:03:33,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:33,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-10-15 02:03:33,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:33,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:33,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-15 02:03:33,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:33,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 02:03:33,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:33,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:33,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:34,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:34,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:03:34,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:34,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-15 02:03:34,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:34,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:03:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:34,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:03:34,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:34,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:34,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:34,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:34,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:03:34,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:34,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-15 02:03:34,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:34,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:34,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:03:34,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:34,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:03:34,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:34,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:34,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:34,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:34,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:34,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:34,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-15 02:03:34,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:34,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:03:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:34,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:34,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:34,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:34,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:34,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:34,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:34,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:34,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-15 02:03:34,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:34,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:34,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:34,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:35,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:35,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:35,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:35,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:35,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:35,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-15 02:03:35,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:35,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:35,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:35,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:35,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:35,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:35,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:35,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:35,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:35,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:35,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:35,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:03:35,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:35,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:35,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:35,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:35,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:35,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:35,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:35,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:35,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:35,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:35,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:35,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:03:35,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:35,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:35,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:35,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:35,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:35,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:35,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:35,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:35,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:35,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:35,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:35,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:03:35,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:35,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:35,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:35,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:35,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:35,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:36,096 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 57 proven. 466 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2020-10-15 02:03:36,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136520620] [2020-10-15 02:03:36,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:03:36,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-10-15 02:03:36,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133103547] [2020-10-15 02:03:36,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-10-15 02:03:36,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:03:36,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-10-15 02:03:36,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1554, Unknown=0, NotChecked=0, Total=1640 [2020-10-15 02:03:36,098 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand 41 states. [2020-10-15 02:03:39,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:03:39,031 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2020-10-15 02:03:39,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 02:03:39,033 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 121 [2020-10-15 02:03:39,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:03:39,034 INFO L225 Difference]: With dead ends: 59 [2020-10-15 02:03:39,034 INFO L226 Difference]: Without dead ends: 55 [2020-10-15 02:03:39,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 25 SyntacticMatches, 6 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=259, Invalid=3281, Unknown=0, NotChecked=0, Total=3540 [2020-10-15 02:03:39,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-15 02:03:39,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-10-15 02:03:39,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-15 02:03:39,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 72 transitions. [2020-10-15 02:03:39,041 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 72 transitions. Word has length 121 [2020-10-15 02:03:39,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:03:39,041 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 72 transitions. [2020-10-15 02:03:39,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-10-15 02:03:39,042 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 72 transitions. [2020-10-15 02:03:39,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-15 02:03:39,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:03:39,043 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 12, 12, 12, 12, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:03:39,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-15 02:03:39,043 INFO L427 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:03:39,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:03:39,043 INFO L82 PathProgramCache]: Analyzing trace with hash 831596388, now seen corresponding path program 38 times [2020-10-15 02:03:39,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:03:39,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334466637] [2020-10-15 02:03:39,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:03:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:39,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:39,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:39,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 02:03:39,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:39,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 872 [2020-10-15 02:03:39,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:39,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:39,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-10-15 02:03:39,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:03:39,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-15 02:03:39,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:39,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:03:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:39,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:40,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:40,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:03:40,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:40,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:03:40,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:40,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:40,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:03:40,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:40,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:03:40,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:40,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:03:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:40,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:40,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:40,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:03:40,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:40,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-15 02:03:40,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:40,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:03:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:03:40,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:40,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:40,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:40,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:40,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:40,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:40,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-15 02:03:40,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:40,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:03:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:40,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:40,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:40,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:40,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:40,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:40,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:40,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-15 02:03:40,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:40,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:40,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:40,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:40,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:40,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:40,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:40,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:40,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:40,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:40,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:40,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-15 02:03:40,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:40,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:40,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:40,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:40,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:40,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:40,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:40,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:40,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:40,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:40,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:40,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 02:03:40,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:40,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:40,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:40,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:40,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:40,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:40,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:40,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:40,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:40,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:40,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:40,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:03:40,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:40,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:40,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:41,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:41,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:41,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:41,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:41,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:41,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:03:41,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:41,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:41,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:41,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:03:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:41,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:41,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:41,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:03:41,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:41,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-15 02:03:41,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:41,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:41,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:03:41,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:41,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:03:41,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:41,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:41,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:41,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:41,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:41,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:41,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-15 02:03:41,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:41,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:41,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:03:41,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:41,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:41,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:41,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:41,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:41,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:41,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:41,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:41,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-15 02:03:41,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:41,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:41,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:41,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:41,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:41,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:41,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:41,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:41,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:41,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-15 02:03:41,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:41,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:41,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:41,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:41,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:41,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:41,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:41,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:41,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:41,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:41,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:41,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:03:41,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:41,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:41,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:41,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:41,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:41,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:41,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:41,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:41,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:41,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:41,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:41,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:03:41,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:41,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:41,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:41,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:41,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:41,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:42,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:42,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:42,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:42,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:42,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:42,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:03:42,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:42,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:42,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:42,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:42,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:42,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:03:42,134 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 75 proven. 295 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-10-15 02:03:42,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334466637] [2020-10-15 02:03:42,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:03:42,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-15 02:03:42,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138937131] [2020-10-15 02:03:42,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-15 02:03:42,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:03:42,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-15 02:03:42,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=695, Unknown=0, NotChecked=0, Total=756 [2020-10-15 02:03:42,135 INFO L87 Difference]: Start difference. First operand 51 states and 72 transitions. Second operand 28 states. [2020-10-15 02:03:43,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:03:43,523 INFO L93 Difference]: Finished difference Result 59 states and 78 transitions. [2020-10-15 02:03:43,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:03:43,525 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 107 [2020-10-15 02:03:43,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:03:43,526 INFO L225 Difference]: With dead ends: 59 [2020-10-15 02:03:43,526 INFO L226 Difference]: Without dead ends: 55 [2020-10-15 02:03:43,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 29 SyntacticMatches, 7 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=177, Invalid=1629, Unknown=0, NotChecked=0, Total=1806 [2020-10-15 02:03:43,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-15 02:03:43,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-10-15 02:03:43,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-15 02:03:43,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 71 transitions. [2020-10-15 02:03:43,532 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 71 transitions. Word has length 107 [2020-10-15 02:03:43,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:03:43,532 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 71 transitions. [2020-10-15 02:03:43,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-15 02:03:43,533 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 71 transitions. [2020-10-15 02:03:43,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:03:43,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:03:43,534 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:03:43,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-15 02:03:43,534 INFO L427 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:03:43,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:03:43,534 INFO L82 PathProgramCache]: Analyzing trace with hash -567080281, now seen corresponding path program 39 times [2020-10-15 02:03:43,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:03:43,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245245761] [2020-10-15 02:03:43,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:03:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:43,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:44,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:44,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-15 02:03:44,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:44,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 682 [2020-10-15 02:03:44,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:44,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-15 02:03:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:03:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-15 02:03:44,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:44,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:03:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:44,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:44,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:44,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:03:44,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:44,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:03:44,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:44,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:44,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:03:44,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:44,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:03:44,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:44,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:03:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:44,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:44,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:44,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:03:44,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:44,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-15 02:03:44,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:44,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:44,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:03:44,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:44,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:03:44,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:44,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:44,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:44,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:44,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:44,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:44,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-15 02:03:44,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:44,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:44,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:03:44,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:44,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:44,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:44,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:44,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:44,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:44,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:44,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:44,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-15 02:03:44,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:44,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:44,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:44,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:44,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:44,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:44,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:44,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:44,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:44,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:44,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:44,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-15 02:03:44,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:44,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:44,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:44,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:44,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:44,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:45,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:45,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:45,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:45,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:45,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:45,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 02:03:45,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:45,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:45,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:45,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:45,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:45,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:45,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:45,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:45,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:45,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:45,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:45,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:03:45,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:45,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:45,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:45,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:45,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:45,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:45,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:45,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:45,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:45,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:45,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:45,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:03:45,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:45,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:45,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:45,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:45,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:45,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:45,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:03:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:45,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:45,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:45,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:45,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:45,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-15 02:03:45,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:45,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:03:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:45,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:45,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:45,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:45,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:45,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:45,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:45,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-15 02:03:45,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:45,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:45,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:45,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:45,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:45,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:45,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:45,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:45,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:45,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:45,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:45,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-15 02:03:45,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:45,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:45,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:46,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:46,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:46,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:46,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:46,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:46,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 02:03:46,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:46,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:46,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:46,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:46,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:46,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:46,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:46,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:46,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:46,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:46,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:46,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:03:46,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:46,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:46,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:46,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:46,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:46,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:46,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:46,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:46,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:46,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:46,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:46,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:03:46,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:46,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:46,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:46,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:46,602 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 38 proven. 296 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-10-15 02:03:46,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245245761] [2020-10-15 02:03:46,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:03:46,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-15 02:03:46,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25386328] [2020-10-15 02:03:46,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-15 02:03:46,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:03:46,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-15 02:03:46,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=1049, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 02:03:46,604 INFO L87 Difference]: Start difference. First operand 51 states and 71 transitions. Second operand 34 states. [2020-10-15 02:03:48,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:03:48,560 INFO L93 Difference]: Finished difference Result 59 states and 77 transitions. [2020-10-15 02:03:48,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:03:48,561 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 100 [2020-10-15 02:03:48,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:03:48,562 INFO L225 Difference]: With dead ends: 59 [2020-10-15 02:03:48,562 INFO L226 Difference]: Without dead ends: 55 [2020-10-15 02:03:48,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 20 SyntacticMatches, 6 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=195, Invalid=2157, Unknown=0, NotChecked=0, Total=2352 [2020-10-15 02:03:48,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-15 02:03:48,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-10-15 02:03:48,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-15 02:03:48,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2020-10-15 02:03:48,568 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 100 [2020-10-15 02:03:48,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:03:48,569 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2020-10-15 02:03:48,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-15 02:03:48,569 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2020-10-15 02:03:48,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 02:03:48,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:03:48,570 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:03:48,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-15 02:03:48,570 INFO L427 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:03:48,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:03:48,571 INFO L82 PathProgramCache]: Analyzing trace with hash 326515792, now seen corresponding path program 40 times [2020-10-15 02:03:48,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:03:48,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280758897] [2020-10-15 02:03:48,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:03:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:48,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:48,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:48,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:03:48,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:48,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394 [2020-10-15 02:03:48,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:48,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-15 02:03:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:03:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-15 02:03:48,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:49,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:03:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:49,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:49,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:49,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:03:49,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:49,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:03:49,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:49,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:49,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:03:49,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:49,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:03:49,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:49,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:03:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:49,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:49,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:49,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:03:49,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:49,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-15 02:03:49,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:49,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:49,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:03:49,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:49,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:03:49,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:49,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:49,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:49,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:49,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:49,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:49,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-15 02:03:49,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:49,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:49,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:03:49,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:49,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:49,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:49,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:49,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:49,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:49,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:49,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:49,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-15 02:03:49,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:49,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:49,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:49,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:49,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:49,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:49,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:49,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:49,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 02:03:49,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:49,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:49,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:49,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:49,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:49,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:49,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:49,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:49,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:03:49,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:49,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:49,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:49,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:49,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:49,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:49,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:49,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:49,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:49,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:49,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:49,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:03:49,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:49,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:49,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:49,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:49,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:49,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:50,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:50,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:50,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:50,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:50,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:50,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:03:50,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:50,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:50,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:50,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:50,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:50,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:50,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:03:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:50,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:50,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:50,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:50,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:50,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 02:03:50,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:50,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:50,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:50,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:50,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:50,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:50,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:50,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:50,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:50,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:03:50,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:50,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:50,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:50,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:50,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:50,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:50,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:50,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:50,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:50,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:50,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:50,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:03:50,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:50,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:50,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:50,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:50,531 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 12 proven. 159 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-15 02:03:50,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280758897] [2020-10-15 02:03:50,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:03:50,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-15 02:03:50,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619430379] [2020-10-15 02:03:50,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-15 02:03:50,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:03:50,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-15 02:03:50,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:03:50,533 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand 27 states. [2020-10-15 02:03:52,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:03:52,007 INFO L93 Difference]: Finished difference Result 59 states and 76 transitions. [2020-10-15 02:03:52,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:03:52,009 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 79 [2020-10-15 02:03:52,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:03:52,010 INFO L225 Difference]: With dead ends: 59 [2020-10-15 02:03:52,010 INFO L226 Difference]: Without dead ends: 55 [2020-10-15 02:03:52,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 17 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=159, Invalid=1563, Unknown=0, NotChecked=0, Total=1722 [2020-10-15 02:03:52,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-15 02:03:52,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2020-10-15 02:03:52,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-15 02:03:52,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 66 transitions. [2020-10-15 02:03:52,016 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 66 transitions. Word has length 79 [2020-10-15 02:03:52,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:03:52,016 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 66 transitions. [2020-10-15 02:03:52,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-15 02:03:52,016 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2020-10-15 02:03:52,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-15 02:03:52,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:03:52,017 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:03:52,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-15 02:03:52,018 INFO L427 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:03:52,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:03:52,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1182847487, now seen corresponding path program 41 times [2020-10-15 02:03:52,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:03:52,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1877792775] [2020-10-15 02:03:52,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:03:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:52,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:52,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:52,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-15 02:03:52,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:52,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 692 [2020-10-15 02:03:52,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:52,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:52,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-15 02:03:52,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:03:52,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-15 02:03:52,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:52,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:03:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:52,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:52,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:52,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:03:52,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:52,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:03:52,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:52,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:52,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:03:52,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:52,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:03:52,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:52,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:03:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:52,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:52,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:52,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:52,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:52,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:03:52,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:52,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:52,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:03:52,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:52,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:52,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:52,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:52,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:52,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:52,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:52,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:52,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:03:52,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:52,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:52,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:52,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:52,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:52,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:52,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:52,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:52,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:52,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:52,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:52,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:03:52,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:52,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:52,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:52,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:52,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:52,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:52,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:03:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:53,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:53,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:53,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 02:03:53,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:53,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-15 02:03:53,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:53,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:53,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-15 02:03:53,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:53,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-15 02:03:53,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:53,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:53,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:53,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:53,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:03:53,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:53,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-15 02:03:53,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:53,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:53,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-15 02:03:53,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:53,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 02:03:53,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:53,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:53,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:53,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:53,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:03:53,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:53,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-15 02:03:53,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:53,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:53,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:03:53,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:53,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:03:53,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:54,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:54,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:54,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:54,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:03:54,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:54,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-15 02:03:54,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:54,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:54,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:03:54,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:54,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:03:54,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:54,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:54,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:54,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:54,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:03:54,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:54,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-15 02:03:54,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:54,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:54,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:03:54,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:54,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:03:54,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:54,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:54,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:54,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:54,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:03:54,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:54,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-15 02:03:54,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:54,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:03:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:03:54,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:54,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:54,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:54,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:54,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:54,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:54,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-15 02:03:54,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:54,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:03:54,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:54,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:54,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:55,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:55,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:55,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:55,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:55,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:55,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-15 02:03:55,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:55,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:55,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:55,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:55,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:55,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:55,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:55,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:55,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:03:55,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:55,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:55,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:55,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:55,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:55,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:55,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:55,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:55,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:55,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:55,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:55,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:03:55,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:55,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:55,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:55,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:55,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:55,603 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 27 proven. 260 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2020-10-15 02:03:55,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1877792775] [2020-10-15 02:03:55,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:03:55,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-15 02:03:55,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506984420] [2020-10-15 02:03:55,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-15 02:03:55,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:03:55,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-15 02:03:55,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=1050, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 02:03:55,605 INFO L87 Difference]: Start difference. First operand 49 states and 66 transitions. Second operand 34 states. [2020-10-15 02:03:58,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:03:58,183 INFO L93 Difference]: Finished difference Result 62 states and 82 transitions. [2020-10-15 02:03:58,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-15 02:03:58,184 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 100 [2020-10-15 02:03:58,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:03:58,186 INFO L225 Difference]: With dead ends: 62 [2020-10-15 02:03:58,186 INFO L226 Difference]: Without dead ends: 58 [2020-10-15 02:03:58,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=218, Invalid=2752, Unknown=0, NotChecked=0, Total=2970 [2020-10-15 02:03:58,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-15 02:03:58,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-15 02:03:58,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 02:03:58,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 75 transitions. [2020-10-15 02:03:58,193 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 75 transitions. Word has length 100 [2020-10-15 02:03:58,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:03:58,193 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 75 transitions. [2020-10-15 02:03:58,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-15 02:03:58,194 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 75 transitions. [2020-10-15 02:03:58,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-15 02:03:58,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:03:58,195 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 12, 12, 12, 12, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:03:58,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-15 02:03:58,195 INFO L427 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:03:58,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:03:58,195 INFO L82 PathProgramCache]: Analyzing trace with hash -865344962, now seen corresponding path program 42 times [2020-10-15 02:03:58,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:03:58,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146985841] [2020-10-15 02:03:58,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:03:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:58,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:59,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:59,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 02:03:59,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:59,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1148 [2020-10-15 02:03:59,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:59,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:59,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-10-15 02:03:59,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:03:59,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-15 02:03:59,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:59,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:03:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:59,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:59,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:59,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:03:59,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:59,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:03:59,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:59,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:59,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:03:59,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:59,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:03:59,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:59,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:03:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:59,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:59,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:59,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:03:59,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:59,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-15 02:03:59,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:59,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:03:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:59,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:03:59,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:59,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:59,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:59,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:59,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:03:59,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:59,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:03:59,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:59,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:59,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:03:59,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:59,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:03:59,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:59,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:59,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:59,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:59,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:03:59,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:59,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:03:59,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:59,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:59,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:03:59,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:59,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:03:59,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:59,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:03:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:59,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:03:59,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:03:59,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:03:59,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:03:59,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:03:59,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:03:59,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:03:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:03:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:03:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:03:59,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:03:59,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 02:03:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:03:59,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:00,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:00,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 02:04:00,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:00,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-15 02:04:00,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:00,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-15 02:04:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:00,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-15 02:04:00,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:00,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:00,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:00,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:00,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:04:00,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:00,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-15 02:04:00,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:00,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-15 02:04:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 02:04:00,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:00,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:00,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:00,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:00,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:04:00,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:00,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-15 02:04:00,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:00,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:00,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:04:00,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:00,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:04:00,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:01,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:01,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:01,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:01,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:04:01,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:01,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-15 02:04:01,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:01,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:01,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:04:01,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:01,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:04:01,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:01,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:01,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:01,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:01,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:04:01,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:01,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-15 02:04:01,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:01,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:01,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:04:01,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:01,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:04:01,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:01,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:01,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:01,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:01,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:04:01,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:01,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-15 02:04:01,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:01,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:01,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:04:01,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:01,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:04:01,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:01,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:01,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:01,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:01,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:04:01,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:01,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-15 02:04:01,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:01,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:01,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:04:01,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:01,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:04:01,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:02,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:02,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:02,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:02,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:04:02,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:02,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:04:02,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:02,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:02,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:04:02,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:02,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:04:02,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:04:02,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:02,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:02,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:02,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:04:02,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:02,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:04:02,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:02,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:04:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:04:02,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:02,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:02,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:02,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:02,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:04:02,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:02,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:04:02,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:02,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:02,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:04:02,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:02,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:04:02,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:02,549 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 41 proven. 316 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2020-10-15 02:04:02,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146985841] [2020-10-15 02:04:02,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:04:02,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-15 02:04:02,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927135850] [2020-10-15 02:04:02,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-15 02:04:02,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:04:02,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-15 02:04:02,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=1120, Unknown=0, NotChecked=0, Total=1190 [2020-10-15 02:04:02,550 INFO L87 Difference]: Start difference. First operand 54 states and 75 transitions. Second operand 35 states. [2020-10-15 02:04:05,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:04:05,614 INFO L93 Difference]: Finished difference Result 64 states and 85 transitions. [2020-10-15 02:04:05,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-15 02:04:05,615 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 107 [2020-10-15 02:04:05,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:04:05,617 INFO L225 Difference]: With dead ends: 64 [2020-10-15 02:04:05,617 INFO L226 Difference]: Without dead ends: 60 [2020-10-15 02:04:05,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 20 SyntacticMatches, 9 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=217, Invalid=2863, Unknown=0, NotChecked=0, Total=3080 [2020-10-15 02:04:05,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-15 02:04:05,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-10-15 02:04:05,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 02:04:05,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 75 transitions. [2020-10-15 02:04:05,625 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 75 transitions. Word has length 107 [2020-10-15 02:04:05,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:04:05,626 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 75 transitions. [2020-10-15 02:04:05,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-15 02:04:05,626 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 75 transitions. [2020-10-15 02:04:05,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-15 02:04:05,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:04:05,627 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 13, 13, 13, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:04:05,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-15 02:04:05,627 INFO L427 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:04:05,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:04:05,627 INFO L82 PathProgramCache]: Analyzing trace with hash -564676919, now seen corresponding path program 43 times [2020-10-15 02:04:05,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:04:05,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201103397] [2020-10-15 02:04:05,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:04:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:05,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:06,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:06,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-15 02:04:06,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:06,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 983 [2020-10-15 02:04:06,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:06,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:06,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 63 [2020-10-15 02:04:06,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:04:06,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-15 02:04:06,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:06,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:04:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:06,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:06,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:06,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:04:06,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:06,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:04:06,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:06,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:06,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:04:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:04:06,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:06,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:04:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:06,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:06,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:06,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:04:06,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:06,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-15 02:04:06,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:06,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:06,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:04:06,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:06,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:04:06,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:06,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:06,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:06,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:06,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:04:06,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:06,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:04:06,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:06,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:06,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:04:06,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:06,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:04:06,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:07,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:07,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:07,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:07,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:04:07,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:07,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:04:07,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:07,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:07,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:04:07,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:07,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:04:07,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:07,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:07,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:07,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:07,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:04:07,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:07,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:04:07,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:07,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:07,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:04:07,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:07,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:04:07,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:07,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:07,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:07,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:07,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:04:07,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:07,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:04:07,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:07,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:07,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:04:07,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:07,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:04:07,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:07,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 02:04:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:07,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:07,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:07,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 02:04:07,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:07,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-15 02:04:07,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:07,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:07,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-15 02:04:07,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:07,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-15 02:04:07,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:07,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:07,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:08,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:08,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:04:08,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:08,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-15 02:04:08,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:08,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:08,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-15 02:04:08,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:08,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 02:04:08,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:08,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:08,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:08,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:08,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:04:08,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:08,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-15 02:04:08,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:08,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:04:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:04:08,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:08,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:08,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:08,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:08,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:04:08,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:08,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-15 02:04:08,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:08,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:04:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:04:08,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:08,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:08,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:09,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:09,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:04:09,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:09,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-15 02:04:09,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:09,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:09,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:04:09,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:09,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:04:09,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:09,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:09,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:09,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:09,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:04:09,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:09,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-15 02:04:09,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:09,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:09,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:04:09,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:09,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:04:09,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:09,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:09,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:09,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:09,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:04:09,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:09,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-15 02:04:09,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:09,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:09,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:04:09,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:09,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:04:09,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:09,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:09,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:09,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:09,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:04:09,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:09,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:04:09,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:09,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:04:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:04:09,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:09,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:09,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:10,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:10,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:04:10,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:10,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:04:10,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:10,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:04:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:04:10,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:10,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:10,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:10,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:10,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:04:10,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:10,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:04:10,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:10,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:04:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:10,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:04:10,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 47 proven. 419 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2020-10-15 02:04:10,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201103397] [2020-10-15 02:04:10,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:04:10,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-15 02:04:10,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420684660] [2020-10-15 02:04:10,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-15 02:04:10,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:04:10,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-15 02:04:10,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1476, Unknown=0, NotChecked=0, Total=1560 [2020-10-15 02:04:10,495 INFO L87 Difference]: Start difference. First operand 54 states and 75 transitions. Second operand 40 states. [2020-10-15 02:04:14,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:04:14,054 INFO L93 Difference]: Finished difference Result 64 states and 85 transitions. [2020-10-15 02:04:14,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-15 02:04:14,054 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 114 [2020-10-15 02:04:14,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:04:14,056 INFO L225 Difference]: With dead ends: 64 [2020-10-15 02:04:14,056 INFO L226 Difference]: Without dead ends: 60 [2020-10-15 02:04:14,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 21 SyntacticMatches, 7 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=272, Invalid=3388, Unknown=0, NotChecked=0, Total=3660 [2020-10-15 02:04:14,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-15 02:04:14,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-10-15 02:04:14,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 02:04:14,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 75 transitions. [2020-10-15 02:04:14,063 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 75 transitions. Word has length 114 [2020-10-15 02:04:14,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:04:14,064 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 75 transitions. [2020-10-15 02:04:14,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-15 02:04:14,064 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 75 transitions. [2020-10-15 02:04:14,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-15 02:04:14,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:04:14,065 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:04:14,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-15 02:04:14,065 INFO L427 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:04:14,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:04:14,066 INFO L82 PathProgramCache]: Analyzing trace with hash -173240844, now seen corresponding path program 44 times [2020-10-15 02:04:14,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:04:14,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047748946] [2020-10-15 02:04:14,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:04:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:14,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:15,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:15,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-15 02:04:15,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:15,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1160 [2020-10-15 02:04:15,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:15,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:15,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 67 [2020-10-15 02:04:15,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:04:15,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-15 02:04:15,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:15,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:04:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:15,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:15,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:15,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:04:15,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:15,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:04:15,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:15,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:15,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:04:15,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:15,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:04:15,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:15,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:04:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:15,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:15,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:15,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:04:15,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:15,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-15 02:04:15,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:15,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:15,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:04:15,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:15,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:04:15,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:15,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:15,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:15,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:15,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:04:15,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:15,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-15 02:04:15,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:15,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:15,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:04:15,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:15,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:04:15,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:15,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:15,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:15,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:15,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:04:15,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:15,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-15 02:04:15,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:15,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:04:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:04:15,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:15,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:15,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:15,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:15,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:04:15,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:15,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 02:04:15,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:15,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:04:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:15,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:04:15,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:15,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:15,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:15,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:15,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:04:15,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:15,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:04:15,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:15,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:15,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:04:15,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:15,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:04:15,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:16,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:16,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:16,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:16,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:04:16,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:16,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:04:16,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:16,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:16,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:04:16,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:16,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:04:16,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:16,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 02:04:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:16,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:16,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:16,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 02:04:16,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:16,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-10-15 02:04:16,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:16,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-15 02:04:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-15 02:04:16,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:16,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:16,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:17,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:17,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:04:17,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:17,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325 [2020-10-15 02:04:17,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:17,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-15 02:04:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 02:04:17,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:17,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:17,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:17,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:17,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:04:17,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:17,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-15 02:04:17,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:17,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:17,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:04:17,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:17,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:04:17,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:17,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:17,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:17,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:17,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:04:17,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:17,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-15 02:04:17,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:17,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:04:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:17,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:04:17,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:17,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:17,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:18,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:18,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:04:18,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:18,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-15 02:04:18,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:18,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:18,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:04:18,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:18,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:04:18,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:18,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:18,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:18,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:18,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:04:18,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:18,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-15 02:04:18,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:18,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:18,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:04:18,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:18,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:04:18,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:18,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:18,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:18,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:18,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:04:18,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:18,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:04:18,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:18,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:18,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:04:18,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:18,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:04:18,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:18,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:18,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:18,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:18,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:04:18,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:18,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:04:18,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:18,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:18,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:04:18,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:18,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:04:18,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:18,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:18,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:19,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:19,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:04:19,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:19,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:04:19,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:19,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:19,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:04:19,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:19,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:04:19,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:19,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:19,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:19,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:19,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:04:19,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:19,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:04:19,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:19,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:04:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:04:19,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:19,432 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 18 proven. 369 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2020-10-15 02:04:19,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047748946] [2020-10-15 02:04:19,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:04:19,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-15 02:04:19,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618932188] [2020-10-15 02:04:19,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-15 02:04:19,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:04:19,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-15 02:04:19,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1331, Unknown=0, NotChecked=0, Total=1406 [2020-10-15 02:04:19,433 INFO L87 Difference]: Start difference. First operand 54 states and 75 transitions. Second operand 38 states. [2020-10-15 02:04:23,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:04:23,165 INFO L93 Difference]: Finished difference Result 64 states and 85 transitions. [2020-10-15 02:04:23,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-15 02:04:23,167 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 121 [2020-10-15 02:04:23,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:04:23,168 INFO L225 Difference]: With dead ends: 64 [2020-10-15 02:04:23,169 INFO L226 Difference]: Without dead ends: 60 [2020-10-15 02:04:23,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=189, Invalid=3233, Unknown=0, NotChecked=0, Total=3422 [2020-10-15 02:04:23,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-15 02:04:23,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-10-15 02:04:23,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 02:04:23,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 75 transitions. [2020-10-15 02:04:23,177 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 75 transitions. Word has length 121 [2020-10-15 02:04:23,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:04:23,177 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 75 transitions. [2020-10-15 02:04:23,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-15 02:04:23,177 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 75 transitions. [2020-10-15 02:04:23,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-15 02:04:23,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:04:23,179 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:04:23,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-15 02:04:23,179 INFO L427 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:04:23,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:04:23,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1022743187, now seen corresponding path program 45 times [2020-10-15 02:04:23,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:04:23,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417262564] [2020-10-15 02:04:23,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:04:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:23,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:24,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:24,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-15 02:04:24,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:24,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1380 [2020-10-15 02:04:24,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:24,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 71 [2020-10-15 02:04:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:04:24,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-15 02:04:24,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:24,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:04:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:24,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:24,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:24,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:04:24,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:24,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:04:24,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:24,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:04:24,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:24,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:04:24,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:24,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:04:24,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:24,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:24,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:24,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:04:24,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:24,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-15 02:04:24,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:24,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:24,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:04:24,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:04:24,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:24,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:24,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:25,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:25,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:04:25,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:25,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-15 02:04:25,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:25,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:25,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:04:25,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:25,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:04:25,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:25,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:25,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:25,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:25,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:04:25,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:25,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-15 02:04:25,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:25,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:25,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:04:25,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:25,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:04:25,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:25,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:25,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:25,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:25,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:04:25,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:25,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-15 02:04:25,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:25,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:04:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:04:25,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:25,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:25,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:25,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:25,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:04:25,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:25,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:04:25,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:25,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:25,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:04:25,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:25,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:04:25,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:25,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:25,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:25,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:25,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:04:25,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:25,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:04:25,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:25,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:25,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:04:25,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:25,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:04:25,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:25,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:25,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:25,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:25,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:04:25,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:25,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:04:25,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:25,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:25,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:04:25,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:25,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:04:25,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:25,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:04:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:25,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:26,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:26,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 02:04:26,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:26,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-10-15 02:04:26,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:26,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:26,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-15 02:04:26,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:26,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-15 02:04:26,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:26,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:26,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:26,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:26,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:04:26,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:26,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-15 02:04:26,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:26,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:26,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-15 02:04:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 02:04:26,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:26,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:26,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:27,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:27,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:04:27,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:27,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-15 02:04:27,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:27,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:27,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:04:27,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:27,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:04:27,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:27,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:27,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:27,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:27,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:04:27,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:27,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-15 02:04:27,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:27,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:27,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:04:27,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:27,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:04:27,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:27,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:27,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:27,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:27,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:04:27,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:27,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-15 02:04:27,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:27,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:27,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:04:27,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:27,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:04:27,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:28,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:28,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:28,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:28,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:04:28,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:28,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-15 02:04:28,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:28,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:28,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:04:28,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:28,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:04:28,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:28,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:28,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:28,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:28,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:04:28,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:28,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-15 02:04:28,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:28,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:28,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:04:28,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:28,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:04:28,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:28,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:28,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:28,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:28,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:04:28,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:28,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:04:28,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:28,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:28,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:04:28,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:28,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:04:28,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:28,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:28,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:28,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:28,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:04:28,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:28,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:04:28,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:28,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:28,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:04:28,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:28,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:04:28,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:29,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:29,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:29,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:29,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:04:29,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:29,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:04:29,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:29,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:29,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:04:29,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:29,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:04:29,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:04:29,382 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 72 proven. 515 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-15 02:04:29,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417262564] [2020-10-15 02:04:29,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:04:29,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2020-10-15 02:04:29,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740241392] [2020-10-15 02:04:29,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-15 02:04:29,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:04:29,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-15 02:04:29,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1800, Unknown=0, NotChecked=0, Total=1892 [2020-10-15 02:04:29,384 INFO L87 Difference]: Start difference. First operand 54 states and 75 transitions. Second operand 44 states. [2020-10-15 02:04:33,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:04:33,502 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2020-10-15 02:04:33,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-15 02:04:33,503 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 128 [2020-10-15 02:04:33,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:04:33,504 INFO L225 Difference]: With dead ends: 62 [2020-10-15 02:04:33,504 INFO L226 Difference]: Without dead ends: 58 [2020-10-15 02:04:33,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 27 SyntacticMatches, 5 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=284, Invalid=3876, Unknown=0, NotChecked=0, Total=4160 [2020-10-15 02:04:33,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-15 02:04:33,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2020-10-15 02:04:33,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-15 02:04:33,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2020-10-15 02:04:33,511 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 128 [2020-10-15 02:04:33,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:04:33,511 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2020-10-15 02:04:33,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-10-15 02:04:33,511 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2020-10-15 02:04:33,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-15 02:04:33,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:04:33,512 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:04:33,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-15 02:04:33,512 INFO L427 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:04:33,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:04:33,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1286180007, now seen corresponding path program 46 times [2020-10-15 02:04:33,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:04:33,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098376400] [2020-10-15 02:04:33,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:04:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:33,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:33,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:33,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 02:04:33,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:33,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-10-15 02:04:33,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:33,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:33,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-15 02:04:33,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:04:33,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-15 02:04:33,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:34,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:04:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:34,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:34,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:34,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:04:34,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:34,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:04:34,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:34,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:34,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:04:34,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:34,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:04:34,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:04:34,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:04:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:34,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:34,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:34,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:04:34,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:34,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-15 02:04:34,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:34,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:34,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-15 02:04:34,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:34,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:04:34,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:34,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:34,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:34,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:34,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:04:34,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:34,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-15 02:04:34,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:34,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:34,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:04:34,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:34,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:04:34,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:34,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:34,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:34,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:34,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:04:34,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:34,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-15 02:04:34,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:34,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:34,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:04:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:04:34,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:34,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:34,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:34,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:34,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:04:34,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:34,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-15 02:04:34,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:34,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:34,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:04:34,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:34,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:04:34,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:35,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:35,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:35,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:35,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:04:35,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:35,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-15 02:04:35,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:35,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:04:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:04:35,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:35,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:35,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:35,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:35,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:04:35,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:35,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:04:35,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:35,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:35,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:04:35,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:35,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:04:35,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:35,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:35,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:35,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:35,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:04:35,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:35,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:04:35,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:35,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:35,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:04:35,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:35,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:04:35,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:35,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:35,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:35,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:35,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:04:35,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:35,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:04:35,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:35,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:35,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:04:35,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:35,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:04:35,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:35,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:04:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:35,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:35,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:35,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:04:35,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:35,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:04:35,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:35,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:35,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:04:35,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:35,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:04:35,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:35,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:35,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:35,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:35,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:04:35,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:35,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:04:35,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:35,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:35,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:04:35,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:35,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:04:35,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:36,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:36,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:36,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:36,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:04:36,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:36,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:04:36,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:36,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:36,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:04:36,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:36,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:04:36,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:36,262 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 23 proven. 220 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-15 02:04:36,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098376400] [2020-10-15 02:04:36,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:04:36,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-15 02:04:36,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612398574] [2020-10-15 02:04:36,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-15 02:04:36,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:04:36,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-15 02:04:36,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2020-10-15 02:04:36,264 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand 30 states. [2020-10-15 02:04:38,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:04:38,630 INFO L93 Difference]: Finished difference Result 62 states and 88 transitions. [2020-10-15 02:04:38,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:04:38,630 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 86 [2020-10-15 02:04:38,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:04:38,632 INFO L225 Difference]: With dead ends: 62 [2020-10-15 02:04:38,632 INFO L226 Difference]: Without dead ends: 58 [2020-10-15 02:04:38,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 17 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=197, Invalid=1965, Unknown=0, NotChecked=0, Total=2162 [2020-10-15 02:04:38,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-15 02:04:38,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-15 02:04:38,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 02:04:38,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 81 transitions. [2020-10-15 02:04:38,638 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 81 transitions. Word has length 86 [2020-10-15 02:04:38,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:04:38,639 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 81 transitions. [2020-10-15 02:04:38,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-15 02:04:38,639 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 81 transitions. [2020-10-15 02:04:38,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-15 02:04:38,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:04:38,640 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:04:38,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-15 02:04:38,640 INFO L427 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:04:38,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:04:38,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1916891532, now seen corresponding path program 47 times [2020-10-15 02:04:38,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:04:38,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548525882] [2020-10-15 02:04:38,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:04:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:38,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:39,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:39,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-15 02:04:39,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:39,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1334 [2020-10-15 02:04:39,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:39,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:39,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 67 [2020-10-15 02:04:39,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:04:39,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-15 02:04:40,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:40,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:04:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:40,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:40,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:40,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:04:40,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:40,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:04:40,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:40,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:40,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:04:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:04:40,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:40,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:04:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:40,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:40,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:40,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:04:40,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:40,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-15 02:04:40,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:40,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:40,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-15 02:04:40,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:40,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:04:40,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:40,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:40,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:40,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:40,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:04:40,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:40,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-15 02:04:40,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:40,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:40,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:04:40,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:40,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:04:40,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:40,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:40,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:40,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:40,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:04:40,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:40,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-15 02:04:40,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:40,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:04:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:04:40,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:40,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:40,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:40,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:40,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:04:40,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:40,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-15 02:04:40,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:40,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:40,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:04:40,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:40,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:04:40,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:40,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:40,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:40,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:40,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:04:40,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:40,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-15 02:04:40,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:40,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:40,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:04:40,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:40,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:04:40,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:41,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:41,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:41,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:41,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:04:41,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:41,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 02:04:41,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:41,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:41,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:04:41,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:41,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:04:41,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:41,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:41,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:41,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:41,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:04:41,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:41,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:04:41,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:41,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:41,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:04:41,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:41,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:04:41,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:41,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:41,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:41,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:41,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:04:41,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:41,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:04:41,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:41,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:41,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:04:41,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:41,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:04:41,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:04:41,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:04:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:41,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:41,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:41,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:04:41,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:41,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-15 02:04:41,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:41,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:41,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:04:41,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:41,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:04:41,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:41,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:41,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:41,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:41,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:04:41,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:41,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-15 02:04:41,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:41,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:41,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:04:41,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:41,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:04:41,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:42,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:42,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:42,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:42,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:04:42,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:42,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-15 02:04:42,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:42,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:42,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:04:42,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:42,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:04:42,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:42,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:42,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:42,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:42,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:04:42,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:42,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-15 02:04:42,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:42,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:42,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:04:42,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:42,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:04:42,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:42,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:42,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:42,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:42,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:04:42,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:42,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:04:42,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:42,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:04:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:04:42,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:42,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:42,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:42,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:42,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:04:42,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:42,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 02:04:42,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:42,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:42,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:04:42,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:42,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:04:42,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:42,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:42,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:42,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:42,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:04:42,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:42,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:04:42,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:42,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:42,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:04:42,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:42,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:04:42,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:42,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:42,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:42,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:42,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:04:42,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:42,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:04:42,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:42,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:42,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:04:42,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:42,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:04:42,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:42,766 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 20 proven. 350 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2020-10-15 02:04:42,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548525882] [2020-10-15 02:04:42,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:04:42,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-15 02:04:42,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323264548] [2020-10-15 02:04:42,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-15 02:04:42,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:04:42,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-15 02:04:42,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=697, Unknown=0, NotChecked=0, Total=756 [2020-10-15 02:04:42,767 INFO L87 Difference]: Start difference. First operand 54 states and 81 transitions. Second operand 28 states. [2020-10-15 02:04:44,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:04:44,892 INFO L93 Difference]: Finished difference Result 62 states and 87 transitions. [2020-10-15 02:04:44,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:04:44,894 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 121 [2020-10-15 02:04:44,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:04:44,896 INFO L225 Difference]: With dead ends: 62 [2020-10-15 02:04:44,896 INFO L226 Difference]: Without dead ends: 58 [2020-10-15 02:04:44,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 35 SyntacticMatches, 9 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=147, Invalid=1833, Unknown=0, NotChecked=0, Total=1980 [2020-10-15 02:04:44,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-15 02:04:44,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-15 02:04:44,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 02:04:44,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 80 transitions. [2020-10-15 02:04:44,902 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 80 transitions. Word has length 121 [2020-10-15 02:04:44,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:04:44,903 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 80 transitions. [2020-10-15 02:04:44,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-15 02:04:44,903 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 80 transitions. [2020-10-15 02:04:44,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-15 02:04:44,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:04:44,904 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:04:44,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-15 02:04:44,904 INFO L427 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:04:44,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:04:44,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1339978551, now seen corresponding path program 48 times [2020-10-15 02:04:44,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:04:44,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440006990] [2020-10-15 02:04:44,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:04:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:44,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:46,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:46,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-15 02:04:46,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:46,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1333 [2020-10-15 02:04:46,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:46,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:46,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 71 [2020-10-15 02:04:46,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:04:46,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-15 02:04:46,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:46,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:04:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:46,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:46,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:46,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:04:46,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:46,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:04:46,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:46,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:04:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:04:46,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:46,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:04:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:46,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:46,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:46,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:04:46,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:46,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-15 02:04:46,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:46,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-15 02:04:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:04:46,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:46,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:46,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:46,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:46,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:04:46,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:46,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-15 02:04:46,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:46,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:46,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:04:46,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:46,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:04:46,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:46,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:46,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:46,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:46,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:04:46,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:46,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-15 02:04:46,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:46,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:46,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:04:46,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:46,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:04:46,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:47,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:47,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:47,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:47,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:04:47,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:47,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-15 02:04:47,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:47,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:47,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:04:47,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:47,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:04:47,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:47,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:47,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:47,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:47,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:04:47,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:47,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-15 02:04:47,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:47,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:47,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:04:47,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:47,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:04:47,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:47,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:47,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:47,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:47,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:04:47,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:47,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 02:04:47,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:47,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:47,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:04:47,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:47,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:04:47,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:47,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:47,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:47,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:47,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:04:47,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:47,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:04:47,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:47,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:47,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:04:47,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:47,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:04:47,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:47,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:47,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:47,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:47,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:04:47,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:47,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:04:47,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:47,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:47,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:04:47,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:47,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:04:47,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:48,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:04:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:48,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:48,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:48,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:04:48,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:48,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-15 02:04:48,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:48,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:48,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-15 02:04:48,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:48,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 02:04:48,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:48,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:48,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:48,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:48,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:04:48,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:48,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-15 02:04:48,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:48,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:48,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:04:48,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:48,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:04:48,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:48,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:48,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:49,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:49,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:04:49,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:49,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-15 02:04:49,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:49,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:04:49,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:49,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:04:49,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:49,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:49,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:49,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:49,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:04:49,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:49,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-15 02:04:49,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:49,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:49,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:04:49,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:49,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:04:49,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:49,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:49,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:49,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:49,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:04:49,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:49,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-15 02:04:49,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:49,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:49,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:04:49,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:49,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:04:49,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:04:50,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:50,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:50,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:50,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:04:50,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:50,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-15 02:04:50,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:50,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:50,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:04:50,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:50,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:04:50,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:04:50,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:50,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:50,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:50,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:04:50,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:50,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-15 02:04:50,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:50,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:50,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:04:50,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:50,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:04:50,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:04:50,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:50,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:50,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:50,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:04:50,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:50,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:04:50,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:50,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:50,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:04:50,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:50,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:04:50,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:51,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:51,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:51,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:51,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:04:51,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:51,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:04:51,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:51,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:51,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:04:51,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:51,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:04:51,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:51,403 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 124 proven. 518 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2020-10-15 02:04:51,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440006990] [2020-10-15 02:04:51,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:04:51,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2020-10-15 02:04:51,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737826577] [2020-10-15 02:04:51,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-10-15 02:04:51,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:04:51,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-10-15 02:04:51,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1881, Unknown=0, NotChecked=0, Total=1980 [2020-10-15 02:04:51,405 INFO L87 Difference]: Start difference. First operand 54 states and 80 transitions. Second operand 45 states. [2020-10-15 02:04:55,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:04:55,487 INFO L93 Difference]: Finished difference Result 62 states and 86 transitions. [2020-10-15 02:04:55,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 02:04:55,489 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 128 [2020-10-15 02:04:55,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:04:55,491 INFO L225 Difference]: With dead ends: 62 [2020-10-15 02:04:55,491 INFO L226 Difference]: Without dead ends: 58 [2020-10-15 02:04:55,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=308, Invalid=3724, Unknown=0, NotChecked=0, Total=4032 [2020-10-15 02:04:55,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-15 02:04:55,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-15 02:04:55,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 02:04:55,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 79 transitions. [2020-10-15 02:04:55,497 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 79 transitions. Word has length 128 [2020-10-15 02:04:55,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:04:55,497 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 79 transitions. [2020-10-15 02:04:55,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-10-15 02:04:55,498 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions. [2020-10-15 02:04:55,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-15 02:04:55,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:04:55,499 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:04:55,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-15 02:04:55,499 INFO L427 AbstractCegarLoop]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:04:55,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:04:55,500 INFO L82 PathProgramCache]: Analyzing trace with hash -893562198, now seen corresponding path program 49 times [2020-10-15 02:04:55,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:04:55,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747197754] [2020-10-15 02:04:55,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:04:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:55,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:57,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:57,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-15 02:04:57,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:57,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1493 [2020-10-15 02:04:57,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:57,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:57,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 75 [2020-10-15 02:04:57,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:04:57,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-15 02:04:57,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:57,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:04:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:57,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:57,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:57,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:04:57,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:57,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:04:57,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:57,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:57,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:04:57,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:57,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:04:57,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:57,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-15 02:04:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:57,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:57,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:57,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:04:57,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:57,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-15 02:04:57,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:57,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:57,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-15 02:04:57,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:04:57,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:57,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:57,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:57,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:57,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:04:57,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:57,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-15 02:04:57,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:57,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:57,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:04:57,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:04:57,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:57,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:57,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:57,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:57,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:04:57,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:57,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-15 02:04:57,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:57,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:04:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:04:57,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:57,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:57,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:57,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:57,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:04:57,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:57,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-15 02:04:57,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:57,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:57,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:04:57,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:57,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:04:57,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:58,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:58,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:58,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:58,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:04:58,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:58,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-15 02:04:58,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:58,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:58,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:04:58,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:58,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:04:58,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:58,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:58,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:58,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:58,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:04:58,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:58,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 02:04:58,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:58,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:58,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:04:58,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:58,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:04:58,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:58,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:58,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:58,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:58,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:04:58,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:58,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:04:58,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:58,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:58,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:04:58,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:58,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:04:58,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:58,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:58,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:58,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:58,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:04:58,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:58,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:04:58,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:58,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:58,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:04:58,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:58,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:04:58,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:58,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:04:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:58,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:59,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:59,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-15 02:04:59,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:59,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-10-15 02:04:59,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:59,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-15 02:04:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-15 02:04:59,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:59,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:59,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:59,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:04:59,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:04:59,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:04:59,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-15 02:04:59,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:04:59,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:04:59,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-15 02:04:59,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:04:59,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-15 02:04:59,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:04:59,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:04:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:04:59,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:04:59,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:05:00,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:05:00,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:05:00,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-15 02:05:00,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:05:00,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:05:00,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:05:00,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:05:00,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-15 02:05:00,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:05:00,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:05:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:05:00,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:05:00,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:05:00,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-15 02:05:00,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:05:00,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-15 02:05:00,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:05:00,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:05:00,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:05:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:05:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:05:00,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:05:00,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:05:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:05:00,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:05:00,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:05:00,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-15 02:05:00,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:05:00,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-15 02:05:00,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:05:00,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:05:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:05:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:05:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:05:00,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:05:00,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:05:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:05:00,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:05:00,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:05:00,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-15 02:05:00,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:05:00,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-15 02:05:00,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:05:00,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:05:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:05:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:05:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:05:00,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:05:01,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:05:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:05:01,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:05:01,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:05:01,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:05:01,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:05:01,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-15 02:05:01,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:05:01,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:05:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:05:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:05:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:05:01,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:05:01,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:05:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:05:01,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:05:01,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:05:01,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:05:01,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:05:01,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-15 02:05:01,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:05:01,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:05:01,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:05:01,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:05:01,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:05:01,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:05:01,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:05:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:05:01,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:05:01,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:05:01,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-15 02:05:01,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:05:01,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:05:01,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:05:01,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:05:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:05:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:05:01,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:05:01,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:05:02,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:05:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:05:02,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:05:02,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:05:02,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:05:02,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:05:02,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:05:02,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:05:02,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:05:02,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:05:02,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:05:02,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:05:02,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:05:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 74 proven. 542 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2020-10-15 02:05:02,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747197754] [2020-10-15 02:05:02,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:05:02,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2020-10-15 02:05:02,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106374690] [2020-10-15 02:05:02,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-10-15 02:05:02,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:05:02,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-10-15 02:05:02,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1887, Unknown=0, NotChecked=0, Total=1980 [2020-10-15 02:05:02,288 INFO L87 Difference]: Start difference. First operand 54 states and 79 transitions. Second operand 45 states.