/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:01:55,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:01:55,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:01:55,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:01:55,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:01:55,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:01:55,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:01:55,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:01:55,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:01:55,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:01:55,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:01:55,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:01:55,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:01:55,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:01:55,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:01:55,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:01:55,139 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:01:55,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:01:55,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:01:55,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:01:55,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:01:55,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:01:55,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:01:55,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:01:55,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:01:55,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:01:55,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:01:55,162 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:01:55,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:01:55,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:01:55,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:01:55,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:01:55,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:01:55,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:01:55,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:01:55,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:01:55,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:01:55,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:01:55,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:01:55,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:01:55,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:01:55,170 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 13:01:55,191 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:01:55,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:01:55,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:01:55,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:01:55,193 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:01:55,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:01:55,194 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:01:55,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:01:55,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:01:55,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:01:55,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:01:55,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:01:55,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:01:55,195 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:01:55,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:01:55,195 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:01:55,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:01:55,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:01:55,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:01:55,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:01:55,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:01:55,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:01:55,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:01:55,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:01:55,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:01:55,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:01:55,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:01:55,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:01:55,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:01:55,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:01:55,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:01:55,509 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:01:55,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:01:55,514 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:01:55,515 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:01:55,516 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_4-1.c [2020-10-13 13:01:55,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e4bfe558/304816c0652d4fd9961dc9e980e7986a/FLAG7e46d5854 [2020-10-13 13:01:56,011 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:01:56,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_4-1.c [2020-10-13 13:01:56,018 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e4bfe558/304816c0652d4fd9961dc9e980e7986a/FLAG7e46d5854 [2020-10-13 13:01:56,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e4bfe558/304816c0652d4fd9961dc9e980e7986a [2020-10-13 13:01:56,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:01:56,435 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:01:56,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:01:56,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:01:56,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:01:56,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:01:56" (1/1) ... [2020-10-13 13:01:56,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df4749d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:01:56, skipping insertion in model container [2020-10-13 13:01:56,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:01:56" (1/1) ... [2020-10-13 13:01:56,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:01:56,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:01:56,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:01:56,648 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:01:56,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:01:56,676 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:01:56,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:01:56 WrapperNode [2020-10-13 13:01:56,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:01:56,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:01:56,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:01:56,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:01:56,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:01:56" (1/1) ... [2020-10-13 13:01:56,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:01:56" (1/1) ... [2020-10-13 13:01:56,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:01:56" (1/1) ... [2020-10-13 13:01:56,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:01:56" (1/1) ... [2020-10-13 13:01:56,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:01:56" (1/1) ... [2020-10-13 13:01:56,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:01:56" (1/1) ... [2020-10-13 13:01:56,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:01:56" (1/1) ... [2020-10-13 13:01:56,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:01:56,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:01:56,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:01:56,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:01:56,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:01:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:01:56,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:01:56,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:01:56,843 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-10-13 13:01:56,843 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-10-13 13:01:56,843 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:01:56,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 13:01:56,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:01:56,843 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-10-13 13:01:56,844 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-10-13 13:01:56,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:01:56,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:01:56,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:01:57,033 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:01:57,033 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 13:01:57,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:01:57 BoogieIcfgContainer [2020-10-13 13:01:57,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:01:57,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:01:57,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:01:57,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:01:57,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:01:56" (1/3) ... [2020-10-13 13:01:57,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcf1c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:01:57, skipping insertion in model container [2020-10-13 13:01:57,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:01:56" (2/3) ... [2020-10-13 13:01:57,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcf1c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:01:57, skipping insertion in model container [2020-10-13 13:01:57,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:01:57" (3/3) ... [2020-10-13 13:01:57,046 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_4-1.c [2020-10-13 13:01:57,057 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:01:57,065 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:01:57,080 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:01:57,136 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:01:57,137 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:01:57,137 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:01:57,137 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:01:57,137 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:01:57,137 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:01:57,138 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:01:57,138 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:01:57,160 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-13 13:01:57,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-13 13:01:57,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:01:57,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:01:57,170 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:01:57,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:01:57,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1464461757, now seen corresponding path program 1 times [2020-10-13 13:01:57,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:01:57,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1211783499] [2020-10-13 13:01:57,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:01:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:57,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:57,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:57,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:01:57,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:01:57,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 13:01:57,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:57,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:01:57,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:01:57,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:01:57,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:01:57,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:01:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:57,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:57,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:57,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:01:57,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:01:57,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:01:57,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:57,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:01:57,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:01:57,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:01:57,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:01:57,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:01:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:57,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:57,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:57,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:01:57,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:01:57,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 13:01:57,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:57,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:01:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:01:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:01:57,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-13 13:01:57,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:01:57,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1211783499] [2020-10-13 13:01:57,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:01:57,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 13:01:57,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195261820] [2020-10-13 13:01:57,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 13:01:57,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:01:57,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 13:01:57,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 13:01:57,622 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-10-13 13:01:57,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:01:57,713 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2020-10-13 13:01:57,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 13:01:57,715 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-13 13:01:57,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:01:57,726 INFO L225 Difference]: With dead ends: 44 [2020-10-13 13:01:57,728 INFO L226 Difference]: Without dead ends: 30 [2020-10-13 13:01:57,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 13:01:57,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-13 13:01:57,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-13 13:01:57,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-13 13:01:57,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-10-13 13:01:57,779 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2020-10-13 13:01:57,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:01:57,779 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-10-13 13:01:57,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 13:01:57,780 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-10-13 13:01:57,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-13 13:01:57,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:01:57,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:01:57,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:01:57,783 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:01:57,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:01:57,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1134800479, now seen corresponding path program 1 times [2020-10-13 13:01:57,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:01:57,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492744576] [2020-10-13 13:01:57,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:01:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:57,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:57,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:57,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 13:01:57,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:01:57,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 13:01:57,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:01:57,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:01:57,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:01:57,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:01:57,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:01:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:57,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:57,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:57,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:01:57,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:01:57,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:01:57,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:57,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:01:57,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:01:57,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:01:57,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:01:57,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:01:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:57,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:57,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:57,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:01:57,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:01:57,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 13:01:57,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:57,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:01:57,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:01:57,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:01:57,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:01:57,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:01:57,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492744576] [2020-10-13 13:01:57,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:01:57,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 13:01:57,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557479138] [2020-10-13 13:01:57,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 13:01:57,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:01:57,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 13:01:57,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 13:01:57,953 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-10-13 13:01:58,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:01:58,023 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-10-13 13:01:58,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 13:01:58,023 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-13 13:01:58,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:01:58,025 INFO L225 Difference]: With dead ends: 36 [2020-10-13 13:01:58,025 INFO L226 Difference]: Without dead ends: 32 [2020-10-13 13:01:58,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 13:01:58,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-13 13:01:58,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-10-13 13:01:58,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-13 13:01:58,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-10-13 13:01:58,036 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2020-10-13 13:01:58,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:01:58,036 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-10-13 13:01:58,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 13:01:58,036 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-10-13 13:01:58,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-13 13:01:58,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:01:58,038 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:01:58,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:01:58,039 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:01:58,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:01:58,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1592795560, now seen corresponding path program 1 times [2020-10-13 13:01:58,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:01:58,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123948439] [2020-10-13 13:01:58,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:01:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:58,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:58,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:58,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:58,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:58,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-13 13:01:58,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:01:58,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 528 [2020-10-13 13:01:58,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:58,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:01:58,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 13:01:58,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:01:58,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:01:58,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:01:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:58,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:58,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:58,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:01:58,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:01:58,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:01:58,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:58,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:01:58,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:01:58,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:01:58,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:01:58,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:01:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:58,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:58,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:58,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 13:01:58,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:01:58,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 13:01:58,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:58,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:01:58,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:01:58,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:01:58,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:01:58,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:01:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:58,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:58,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:58,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:01:58,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:01:58,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:01:58,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:58,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:01:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:01:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:01:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:01:58,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 13:01:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:58,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:58,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:58,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:01:58,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:01:58,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:01:58,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:58,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:01:58,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:01:58,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:01:58,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:01:58,768 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 13:01:58,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [123948439] [2020-10-13 13:01:58,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:01:58,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 13:01:58,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12863973] [2020-10-13 13:01:58,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 13:01:58,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:01:58,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 13:01:58,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 13:01:58,773 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 6 states. [2020-10-13 13:01:58,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:01:58,877 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2020-10-13 13:01:58,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 13:01:58,878 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-10-13 13:01:58,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:01:58,879 INFO L225 Difference]: With dead ends: 58 [2020-10-13 13:01:58,879 INFO L226 Difference]: Without dead ends: 34 [2020-10-13 13:01:58,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:01:58,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-13 13:01:58,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-10-13 13:01:58,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-13 13:01:58,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-10-13 13:01:58,903 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2020-10-13 13:01:58,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:01:58,904 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-10-13 13:01:58,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 13:01:58,904 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-10-13 13:01:58,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-13 13:01:58,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:01:58,908 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:01:58,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:01:58,909 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:01:58,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:01:58,910 INFO L82 PathProgramCache]: Analyzing trace with hash 746633022, now seen corresponding path program 1 times [2020-10-13 13:01:58,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:01:58,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580263911] [2020-10-13 13:01:58,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:01:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:58,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:58,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:59,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-13 13:01:59,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:01:59,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-13 13:01:59,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:59,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:01:59,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:01:59,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:01:59,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:01:59,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:01:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:59,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:59,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:01:59,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:01:59,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:01:59,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:01:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:01:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:01:59,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:01:59,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:01:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:59,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:59,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:01:59,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:01:59,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-13 13:01:59,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:59,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:01:59,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:01:59,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:01:59,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:01:59,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:01:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:59,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:59,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:01:59,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:01:59,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:01:59,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:59,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:01:59,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:01:59,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:01:59,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:01:59,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:01:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:59,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:59,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:01:59,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:01:59,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:01:59,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:59,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:01:59,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:01:59,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:01:59,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:01:59,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 13:01:59,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580263911] [2020-10-13 13:01:59,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:01:59,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 13:01:59,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798369629] [2020-10-13 13:01:59,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 13:01:59,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:01:59,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 13:01:59,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:01:59,368 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 7 states. [2020-10-13 13:01:59,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:01:59,500 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2020-10-13 13:01:59,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 13:01:59,501 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-13 13:01:59,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:01:59,502 INFO L225 Difference]: With dead ends: 39 [2020-10-13 13:01:59,502 INFO L226 Difference]: Without dead ends: 35 [2020-10-13 13:01:59,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:01:59,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-13 13:01:59,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2020-10-13 13:01:59,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-13 13:01:59,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2020-10-13 13:01:59,511 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 27 [2020-10-13 13:01:59,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:01:59,512 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2020-10-13 13:01:59,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 13:01:59,512 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2020-10-13 13:01:59,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-13 13:01:59,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:01:59,514 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:01:59,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:01:59,514 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:01:59,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:01:59,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1725129826, now seen corresponding path program 1 times [2020-10-13 13:01:59,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:01:59,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2098021573] [2020-10-13 13:01:59,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:01:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:59,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:59,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:01:59,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:01:59,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-13 13:01:59,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:59,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:01:59,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:01:59,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:01:59,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:01:59,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:01:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:59,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:59,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:01:59,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:01:59,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:01:59,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:59,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:01:59,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:01:59,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:01:59,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:01:59,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:01:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:59,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:59,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 13:01:59,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:01:59,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 13:01:59,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:01:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:01:59,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:01:59,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:01:59,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:01:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:59,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:59,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:01:59,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:01:59,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:01:59,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:01:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:01:59,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:01:59,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:01:59,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:01:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:59,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:01:59,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:01:59,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:01:59,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:01:59,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:01:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:01:59,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:01:59,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:01:59,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:01:59,847 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 13:01:59,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2098021573] [2020-10-13 13:01:59,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:01:59,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 13:01:59,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351549885] [2020-10-13 13:01:59,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 13:01:59,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:01:59,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 13:01:59,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:01:59,850 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand 7 states. [2020-10-13 13:01:59,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:01:59,962 INFO L93 Difference]: Finished difference Result 67 states and 93 transitions. [2020-10-13 13:01:59,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 13:01:59,963 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-13 13:01:59,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:01:59,965 INFO L225 Difference]: With dead ends: 67 [2020-10-13 13:01:59,965 INFO L226 Difference]: Without dead ends: 40 [2020-10-13 13:01:59,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:01:59,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-13 13:01:59,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2020-10-13 13:01:59,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-13 13:01:59,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2020-10-13 13:01:59,976 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 28 [2020-10-13 13:01:59,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:01:59,976 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2020-10-13 13:01:59,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 13:01:59,977 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2020-10-13 13:01:59,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-13 13:01:59,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:01:59,979 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:01:59,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:01:59,979 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:01:59,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:01:59,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1428455685, now seen corresponding path program 1 times [2020-10-13 13:01:59,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:01:59,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951923085] [2020-10-13 13:01:59,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:01:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:01:59,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:01:59,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:00,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:00,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:00,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:00,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:00,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:03,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:03,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-13 13:02:03,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:02:03,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3119 [2020-10-13 13:02:03,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:03,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:02:03,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 13:02:03,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:02:03,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:02:03,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:02:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:03,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:03,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:03,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:02:03,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:03,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:03,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:03,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:03,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:03,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:03,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:03,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:02:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:03,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:03,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:03,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:03,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:03,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:03,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 13:02:03,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:02:03,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-10-13 13:02:03,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:03,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:02:03,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-13 13:02:03,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:02:03,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:03,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:03,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:03,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:03,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 13:02:03,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:03,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:02:03,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:03,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:02:03,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:02:03,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:02:03,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:03,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:03,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:03,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:03,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:03,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:03,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:02:03,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:03,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:02:03,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:02:03,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:02:03,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:02:03,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 13:02:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:03,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:03,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:03,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:03,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:03,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:03,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:03,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:03,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:02:03,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:03,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:03,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 13:02:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:03,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:03,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:03,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:03,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:03,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:02:03,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:02:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:03,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:02:03,624 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-13 13:02:03,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951923085] [2020-10-13 13:02:03,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:02:03,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 13:02:03,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932337053] [2020-10-13 13:02:03,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 13:02:03,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:02:03,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 13:02:03,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 13:02:03,627 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand 6 states. [2020-10-13 13:02:03,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:02:03,712 INFO L93 Difference]: Finished difference Result 70 states and 95 transitions. [2020-10-13 13:02:03,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 13:02:03,713 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-10-13 13:02:03,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:02:03,714 INFO L225 Difference]: With dead ends: 70 [2020-10-13 13:02:03,714 INFO L226 Difference]: Without dead ends: 39 [2020-10-13 13:02:03,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:02:03,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-13 13:02:03,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-13 13:02:03,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-13 13:02:03,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2020-10-13 13:02:03,723 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 40 [2020-10-13 13:02:03,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:02:03,724 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2020-10-13 13:02:03,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 13:02:03,724 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2020-10-13 13:02:03,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-13 13:02:03,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:02:03,726 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:02:03,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:02:03,726 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:02:03,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:02:03,727 INFO L82 PathProgramCache]: Analyzing trace with hash 208191613, now seen corresponding path program 1 times [2020-10-13 13:02:03,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:02:03,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2130521702] [2020-10-13 13:02:03,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:02:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:03,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:03,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:03,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:04,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:04,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:02:04,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:02:04,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-10-13 13:02:04,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:04,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:02:04,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:02:04,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:02:04,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:04,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:02:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:04,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:04,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:04,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:02:04,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:04,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:02:04,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:04,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:04,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:02:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:04,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:04,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:04,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:05,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:05,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:02:05,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:02:05,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 796 [2020-10-13 13:02:05,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:02:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:02:05,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-13 13:02:05,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:05,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:05,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:05,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:05,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:02:05,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:05,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:02:05,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:05,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:02:05,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:05,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:02:05,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:05,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:05,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:05,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:05,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:05,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:05,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:05,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:05,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:05,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:05,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:05,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:05,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:02:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:05,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:05,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:05,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:05,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:05,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:05,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:05,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:05,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:05,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:05,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:05,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:02:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:05,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:05,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:05,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:05,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:05,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:02:05,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:02:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:05,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:02:05,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:05,206 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-13 13:02:05,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2130521702] [2020-10-13 13:02:05,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:02:05,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 13:02:05,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313417456] [2020-10-13 13:02:05,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 13:02:05,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:02:05,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 13:02:05,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:02:05,208 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 7 states. [2020-10-13 13:02:05,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:02:05,342 INFO L93 Difference]: Finished difference Result 55 states and 73 transitions. [2020-10-13 13:02:05,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 13:02:05,343 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-10-13 13:02:05,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:02:05,344 INFO L225 Difference]: With dead ends: 55 [2020-10-13 13:02:05,344 INFO L226 Difference]: Without dead ends: 44 [2020-10-13 13:02:05,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:02:05,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-13 13:02:05,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2020-10-13 13:02:05,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-13 13:02:05,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2020-10-13 13:02:05,352 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 41 [2020-10-13 13:02:05,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:02:05,353 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2020-10-13 13:02:05,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 13:02:05,353 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2020-10-13 13:02:05,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-13 13:02:05,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:02:05,355 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:02:05,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:02:05,355 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:02:05,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:02:05,356 INFO L82 PathProgramCache]: Analyzing trace with hash 794281190, now seen corresponding path program 1 times [2020-10-13 13:02:05,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:02:05,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118133935] [2020-10-13 13:02:05,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:02:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:05,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:05,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:05,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:05,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:05,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:05,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:05,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:05,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:09,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:10,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:10,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 13:02:10,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:02:10,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-13 13:02:10,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:10,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:02:10,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:02:10,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:02:10,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:10,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:02:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:10,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:10,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:10,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:02:10,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:10,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:02:10,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:10,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:10,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:02:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:10,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:10,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:10,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:10,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:10,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:10,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:10,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:10,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:10,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:11,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:12,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:15,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:15,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-13 13:02:15,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-13 13:02:15,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-13 13:02:15,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:15,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:02:15,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:02:15,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:02:15,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:15,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:15,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:15,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:15,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:15,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:15,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:02:15,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:02:15,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-13 13:02:15,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:02:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:15,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:02:15,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:15,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:15,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:15,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:15,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:15,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:15,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:02:15,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:02:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:15,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:02:15,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:15,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:02:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:15,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:15,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:15,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:15,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:15,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:02:15,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:02:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:02:15,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:02:15,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:02:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:15,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:15,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:15,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:15,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:15,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:02:15,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:02:15,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 13:02:15,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:15,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:02:15,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:02:15,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:02:15,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:15,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:15,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:15,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:15,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:15,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:15,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:02:15,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:02:15,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:15,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:02:15,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:15,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:02:15,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:15,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:02:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:15,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:15,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:15,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:15,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:15,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:02:15,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:02:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:02:15,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 15 proven. 17 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-13 13:02:15,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118133935] [2020-10-13 13:02:15,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:02:15,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 13:02:15,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805261794] [2020-10-13 13:02:15,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:02:15,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:02:15,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:02:15,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:02:15,762 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 10 states. [2020-10-13 13:02:16,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:02:16,057 INFO L93 Difference]: Finished difference Result 96 states and 148 transitions. [2020-10-13 13:02:16,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 13:02:16,058 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-10-13 13:02:16,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:02:16,060 INFO L225 Difference]: With dead ends: 96 [2020-10-13 13:02:16,061 INFO L226 Difference]: Without dead ends: 61 [2020-10-13 13:02:16,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:02:16,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-13 13:02:16,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 58. [2020-10-13 13:02:16,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-13 13:02:16,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 82 transitions. [2020-10-13 13:02:16,086 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 82 transitions. Word has length 54 [2020-10-13 13:02:16,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:02:16,087 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 82 transitions. [2020-10-13 13:02:16,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:02:16,087 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 82 transitions. [2020-10-13 13:02:16,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 13:02:16,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:02:16,093 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:02:16,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:02:16,096 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:02:16,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:02:16,096 INFO L82 PathProgramCache]: Analyzing trace with hash -415279970, now seen corresponding path program 1 times [2020-10-13 13:02:16,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:02:16,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70208865] [2020-10-13 13:02:16,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:02:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:16,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:16,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:16,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:16,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:16,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:16,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:16,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:16,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:16,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:16,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:16,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:16,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:17,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:17,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:18,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:21,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:21,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-13 13:02:21,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-13 13:02:21,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 13:02:21,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:21,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:02:21,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-13 13:02:21,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 13:02:21,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:02:21,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:02:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:21,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:21,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:21,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:02:21,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:21,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:21,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:21,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:21,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:02:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:21,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:21,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:21,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:21,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:21,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:21,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:21,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:21,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:22,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:22,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:22,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:22,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:23,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:23,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:23,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:23,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:23,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:23,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:23,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:24,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:24,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:26,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:26,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 13:02:26,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-13 13:02:26,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 13:02:26,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:26,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:02:26,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 13:02:26,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 13:02:26,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:26,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:26,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:26,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:26,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:26,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:26,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:26,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 13:02:26,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:02:26,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-13 13:02:26,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:26,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:02:26,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:02:26,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 13:02:26,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:26,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:26,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:26,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:26,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:26,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:26,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:02:26,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:02:26,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 13:02:26,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:26,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:02:26,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:26,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:02:26,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:26,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:26,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:26,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:26,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:26,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:26,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:02:26,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:26,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:02:26,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:26,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:02:26,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:26,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:02:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:26,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:26,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:26,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:26,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:26,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:02:26,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:26,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:02:26,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:26,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:02:26,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:26,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:02:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:26,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:26,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:26,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:26,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:26,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:02:26,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:26,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:02:26,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:02:26,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:02:26,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:26,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 13:02:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:26,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:26,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:26,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:26,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:26,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:27,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:27,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 13:02:27,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:02:27,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 473 [2020-10-13 13:02:27,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:27,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:27,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 13:02:27,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:27,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:27,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:27,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:27,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:27,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:02:27,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:27,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:02:27,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:27,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:27,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:27,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:27,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:27,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:27,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:27,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:27,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:27,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:27,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:27,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:27,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:27,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:02:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:27,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:27,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:27,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:27,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:27,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:27,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:27,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:27,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:27,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:27,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:27,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:02:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:27,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:27,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:27,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:27,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:27,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:27,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:27,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:27,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:27,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:27,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:27,100 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 20 proven. 31 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-13 13:02:27,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70208865] [2020-10-13 13:02:27,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:02:27,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 13:02:27,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763443597] [2020-10-13 13:02:27,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 13:02:27,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:02:27,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 13:02:27,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 13:02:27,102 INFO L87 Difference]: Start difference. First operand 58 states and 82 transitions. Second operand 8 states. [2020-10-13 13:02:27,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:02:27,246 INFO L93 Difference]: Finished difference Result 113 states and 180 transitions. [2020-10-13 13:02:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 13:02:27,247 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-13 13:02:27,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:02:27,249 INFO L225 Difference]: With dead ends: 113 [2020-10-13 13:02:27,249 INFO L226 Difference]: Without dead ends: 61 [2020-10-13 13:02:27,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:02:27,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-13 13:02:27,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 58. [2020-10-13 13:02:27,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-13 13:02:27,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2020-10-13 13:02:27,260 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 80 transitions. Word has length 80 [2020-10-13 13:02:27,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:02:27,261 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 80 transitions. [2020-10-13 13:02:27,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 13:02:27,261 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 80 transitions. [2020-10-13 13:02:27,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-13 13:02:27,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:02:27,262 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:02:27,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:02:27,263 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:02:27,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:02:27,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1156896337, now seen corresponding path program 1 times [2020-10-13 13:02:27,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:02:27,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937392377] [2020-10-13 13:02:27,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:02:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:27,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:27,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:27,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 13:02:27,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:27,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-13 13:02:27,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:27,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-13 13:02:27,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 13:02:27,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 13:02:27,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:27,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:02:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:27,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:27,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:27,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:02:27,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:27,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:02:27,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:27,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:27,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:27,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:27,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:27,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:02:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:27,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:27,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:27,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 13:02:27,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:27,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-13 13:02:27,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:27,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:02:27,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:27,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 13:02:27,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:27,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:27,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:27,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:27,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:02:27,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:27,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 13:02:27,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:27,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:02:27,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:27,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 13:02:27,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:27,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:27,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:27,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:27,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:02:27,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:27,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:02:27,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:27,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:02:27,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:02:27,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:27,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:27,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:27,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:27,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:27,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:27,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:02:27,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:27,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:02:27,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:27,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:02:27,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:27,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:02:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:27,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:27,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:27,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:27,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:27,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:02:27,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:27,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:02:27,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:27,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:02:27,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:27,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:02:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:27,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:27,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:27,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:27,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:27,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:02:27,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:02:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:02:27,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:27,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 13:02:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:27,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:27,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:27,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:02:27,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:27,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:02:27,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:27,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:02:27,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:27,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:02:27,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:28,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:28,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:28,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:28,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:28,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:28,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:02:28,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:28,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:02:28,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:28,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:02:28,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:28,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:02:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:28,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:28,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:28,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:28,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:28,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:02:28,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:28,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:02:28,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:28,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:02:28,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:28,059 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-10-13 13:02:28,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [937392377] [2020-10-13 13:02:28,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:02:28,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-13 13:02:28,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324792034] [2020-10-13 13:02:28,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-13 13:02:28,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:02:28,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-13 13:02:28,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2020-10-13 13:02:28,062 INFO L87 Difference]: Start difference. First operand 58 states and 80 transitions. Second operand 17 states. [2020-10-13 13:02:28,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:02:28,269 INFO L93 Difference]: Finished difference Result 106 states and 181 transitions. [2020-10-13 13:02:28,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:02:28,269 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 68 [2020-10-13 13:02:28,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:02:28,272 INFO L225 Difference]: With dead ends: 106 [2020-10-13 13:02:28,272 INFO L226 Difference]: Without dead ends: 102 [2020-10-13 13:02:28,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:02:28,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-13 13:02:28,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 81. [2020-10-13 13:02:28,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-13 13:02:28,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 136 transitions. [2020-10-13 13:02:28,291 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 136 transitions. Word has length 68 [2020-10-13 13:02:28,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:02:28,291 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 136 transitions. [2020-10-13 13:02:28,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-13 13:02:28,292 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 136 transitions. [2020-10-13 13:02:28,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 13:02:28,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:02:28,294 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:02:28,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:02:28,294 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:02:28,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:02:28,295 INFO L82 PathProgramCache]: Analyzing trace with hash -466351986, now seen corresponding path program 2 times [2020-10-13 13:02:28,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:02:28,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1996476546] [2020-10-13 13:02:28,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:02:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:28,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:28,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:28,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:28,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:28,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:28,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:28,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:28,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:28,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:30,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:30,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:31,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:32,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:32,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:32,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:32,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:32,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:32,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:33,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:02:33,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-13 13:02:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-13 13:02:33,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:02:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-13 13:02:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:02:33,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:02:33,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:02:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:33,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:33,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:02:33,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:33,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:02:33,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:33,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:33,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:33,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:33,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:33,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:02:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:33,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:33,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:34,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:36,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:36,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:36,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:36,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:36,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:36,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:36,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:36,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:36,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:36,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:36,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:37,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:37,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:37,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:38,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:38,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-13 13:02:38,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 27 [2020-10-13 13:02:38,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 13:02:38,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:38,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:02:38,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-13 13:02:38,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:02:38,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:38,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:38,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:38,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:38,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:02:38,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:38,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:02:38,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:38,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:38,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:38,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:38,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:38,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:02:38,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:38,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:02:38,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:38,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:38,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:38,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:38,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:38,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:38,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:38,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:38,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:38,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:38,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:38,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:38,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:02:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:38,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:38,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:38,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:38,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:38,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:38,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:38,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:38,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:38,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:02:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:38,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:38,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:38,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:38,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:38,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:38,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:38,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:38,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:38,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 13:02:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:38,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:38,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:38,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:38,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:38,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:38,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:38,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:38,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:38,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:38,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:39,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:39,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:39,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:39,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:39,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:43,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:43,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 13:02:43,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-13 13:02:43,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:02:43,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:43,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:02:43,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:02:43,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:02:43,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:43,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:43,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:43,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:43,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:43,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:02:43,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:02:43,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 13:02:43,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:43,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:02:43,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:43,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:02:43,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:43,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:43,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:43,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:43,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:43,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:43,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:02:43,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:43,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:02:43,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:43,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:02:43,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:43,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:02:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:43,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:43,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:43,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:43,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:43,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:43,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:43,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:02:43,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:02:43,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:43,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:02:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:43,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:43,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:43,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:43,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:43,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:43,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:44,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:44,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:02:44,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:02:44,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 546 [2020-10-13 13:02:44,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:44,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:02:44,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:02:44,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-13 13:02:44,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:44,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:44,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:44,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:44,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:44,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:44,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:02:44,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:02:44,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 13:02:44,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:44,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:02:44,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:44,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:02:44,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:44,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:44,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:44,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:44,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:44,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:44,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:02:44,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:44,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:02:44,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:44,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:02:44,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:44,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:02:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:44,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:44,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:44,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:44,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:44,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:44,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:44,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:02:44,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:44,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:02:44,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:44,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:02:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:44,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:44,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:44,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:44,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:44,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:02:44,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:44,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:02:44,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:44,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:02:44,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:44,252 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 108 proven. 32 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-10-13 13:02:44,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1996476546] [2020-10-13 13:02:44,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:02:44,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 13:02:44,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874308988] [2020-10-13 13:02:44,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:02:44,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:02:44,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:02:44,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:02:44,255 INFO L87 Difference]: Start difference. First operand 81 states and 136 transitions. Second operand 12 states. [2020-10-13 13:02:44,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:02:44,577 INFO L93 Difference]: Finished difference Result 163 states and 315 transitions. [2020-10-13 13:02:44,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:02:44,578 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 109 [2020-10-13 13:02:44,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:02:44,579 INFO L225 Difference]: With dead ends: 163 [2020-10-13 13:02:44,579 INFO L226 Difference]: Without dead ends: 88 [2020-10-13 13:02:44,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:02:44,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-13 13:02:44,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2020-10-13 13:02:44,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-13 13:02:44,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 137 transitions. [2020-10-13 13:02:44,606 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 137 transitions. Word has length 109 [2020-10-13 13:02:44,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:02:44,607 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 137 transitions. [2020-10-13 13:02:44,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:02:44,608 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 137 transitions. [2020-10-13 13:02:44,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 13:02:44,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:02:44,610 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:02:44,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 13:02:44,611 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:02:44,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:02:44,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1362646544, now seen corresponding path program 1 times [2020-10-13 13:02:44,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:02:44,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386099630] [2020-10-13 13:02:44,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:02:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:44,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:44,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:44,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:44,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:44,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:44,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:44,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:44,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:46,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:46,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:46,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:46,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:46,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:49,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:49,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 13:02:49,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 13:02:49,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:02:49,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:49,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:02:49,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-13 13:02:49,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:02:49,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:49,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:02:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:49,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:49,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:49,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:02:49,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:49,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:02:49,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:49,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:49,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:49,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:49,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:49,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:02:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:49,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:49,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:49,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:49,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:49,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:49,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:49,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:49,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:49,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:49,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:49,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:49,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:54,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:54,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 13:02:54,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-13 13:02:54,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-13 13:02:54,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:54,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:02:54,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-13 13:02:54,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:02:54,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:54,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:54,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:54,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:54,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:02:54,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:54,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:02:54,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:54,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:54,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:54,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:54,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:54,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:54,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:54,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:54,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:02:54,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:54,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:02:54,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:54,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:54,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:54,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:54,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:54,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:54,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:54,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:54,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:54,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:54,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:54,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:54,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:54,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:02:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:54,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:54,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:54,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:54,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:54,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:02:54,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:54,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:54,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:54,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:54,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:02:54,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:02:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:54,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:54,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:54,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:54,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:54,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:54,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:54,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:02:54,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:54,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:02:54,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:54,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 13:02:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:54,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:54,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:54,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:54,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:54,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:02:54,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:02:54,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 13:02:54,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:02:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:02:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:02:54,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:54,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:54,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:54,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:54,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:54,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:54,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:02:54,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:54,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:02:54,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:54,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:02:54,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:54,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:02:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:54,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:54,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:54,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:54,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:54,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:02:54,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:02:54,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:02:54,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:54,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:02:54,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:02:54,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:02:54,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:54,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:02:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:54,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:54,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:54,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:02:54,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:54,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:02:54,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:02:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:02:54,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:02:54,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:02:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:54,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:54,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:54,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:02:54,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:02:54,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:02:54,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:54,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:02:54,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:02:54,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:02:54,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-13 13:02:54,818 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 51 proven. 3 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-10-13 13:02:54,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386099630] [2020-10-13 13:02:54,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:02:54,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 13:02:54,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970047456] [2020-10-13 13:02:54,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 13:02:54,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:02:54,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 13:02:54,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:02:54,820 INFO L87 Difference]: Start difference. First operand 85 states and 137 transitions. Second operand 7 states. [2020-10-13 13:02:54,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:02:54,948 INFO L93 Difference]: Finished difference Result 162 states and 284 transitions. [2020-10-13 13:02:54,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 13:02:54,951 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2020-10-13 13:02:54,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:02:54,953 INFO L225 Difference]: With dead ends: 162 [2020-10-13 13:02:54,956 INFO L226 Difference]: Without dead ends: 82 [2020-10-13 13:02:54,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:02:54,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-13 13:02:54,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-13 13:02:54,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-13 13:02:54,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 127 transitions. [2020-10-13 13:02:54,978 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 127 transitions. Word has length 82 [2020-10-13 13:02:54,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:02:54,980 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 127 transitions. [2020-10-13 13:02:54,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 13:02:54,980 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 127 transitions. [2020-10-13 13:02:54,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 13:02:54,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:02:54,982 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:02:54,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 13:02:54,982 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:02:54,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:02:54,983 INFO L82 PathProgramCache]: Analyzing trace with hash -908952008, now seen corresponding path program 2 times [2020-10-13 13:02:54,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:02:54,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369524602] [2020-10-13 13:02:54,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:02:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:02:55,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:55,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:55,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:55,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:55,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:55,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:55,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:55,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:55,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:55,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:55,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:55,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:55,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:55,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:55,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:55,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:56,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:56,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:56,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:56,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:02:59,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:02:59,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 13:02:59,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-13 13:02:59,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 13:02:59,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:02:59,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 13:02:59,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:02:59,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:02:59,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:00,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:03:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:00,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:00,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:03:00,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:00,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:03:00,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:00,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:00,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:00,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:00,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:00,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:03:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:00,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:00,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:02,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:02,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:02,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:03,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:03,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:03,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:04,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:05,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:05,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 13:03:05,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 25 [2020-10-13 13:03:05,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:03:05,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:05,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 13:03:05,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:03:05,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:03:05,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:05,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:05,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:05,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:05,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:05,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:05,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:05,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:06,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:03:06,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:03:06,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 972 [2020-10-13 13:03:06,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:06,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:03:06,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:06,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 13:03:06,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:06,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:06,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:06,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:03:06,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:03:06,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 13:03:06,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:06,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:03:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:03:06,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:06,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:06,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:06,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:06,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:06,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:03:06,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:06,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:03:06,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:03:06,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:06,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:03:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:06,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:06,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:03:06,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:06,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:03:06,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:06,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:03:06,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:06,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:03:06,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:06,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:03:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:06,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:06,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:06,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:06,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:06,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:03:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:06,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:03:06,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:06,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 13:03:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:06,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:06,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:03:06,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:03:06,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-13 13:03:06,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:06,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:03:06,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:03:06,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-13 13:03:06,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:06,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:06,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:06,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:03:06,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:03:06,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 13:03:06,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:06,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:03:06,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:03:06,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:06,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:06,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:06,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:06,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:03:06,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:03:06,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:06,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:03:06,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:06,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:03:06,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:06,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:03:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:06,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:06,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:03:06,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:06,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:06,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:06,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:03:06,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:06,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:03:06,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:06,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:03:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:06,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:06,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:06,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:06,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:06,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:03:06,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:06,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:03:06,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:06,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:03:06,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:06,576 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 30 proven. 64 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-13 13:03:06,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1369524602] [2020-10-13 13:03:06,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:03:06,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 13:03:06,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806910234] [2020-10-13 13:03:06,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:03:06,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:03:06,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:03:06,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:03:06,579 INFO L87 Difference]: Start difference. First operand 82 states and 127 transitions. Second operand 14 states. [2020-10-13 13:03:06,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:03:06,958 INFO L93 Difference]: Finished difference Result 165 states and 291 transitions. [2020-10-13 13:03:06,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:03:06,959 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 82 [2020-10-13 13:03:06,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:03:06,961 INFO L225 Difference]: With dead ends: 165 [2020-10-13 13:03:06,961 INFO L226 Difference]: Without dead ends: 88 [2020-10-13 13:03:06,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:03:06,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-13 13:03:06,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2020-10-13 13:03:06,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-13 13:03:06,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 127 transitions. [2020-10-13 13:03:06,978 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 127 transitions. Word has length 82 [2020-10-13 13:03:06,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:03:06,979 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 127 transitions. [2020-10-13 13:03:06,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:03:06,979 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 127 transitions. [2020-10-13 13:03:06,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-13 13:03:06,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:03:06,981 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:03:06,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 13:03:06,981 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:03:06,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:03:06,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1888053581, now seen corresponding path program 3 times [2020-10-13 13:03:06,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:03:06,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486583179] [2020-10-13 13:03:06,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:03:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:06,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:07,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:07,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:07,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:07,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:07,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:07,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:07,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:07,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:07,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:07,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:07,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:08,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:11,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:11,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 13:03:11,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-13 13:03:11,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:03:11,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:03:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:03:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:03:11,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:12,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:03:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:12,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:12,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:12,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:03:12,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:12,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:03:12,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:12,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:12,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:12,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:12,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:12,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:03:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:12,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:12,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:12,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:12,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:12,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:12,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:12,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:12,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:12,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:12,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:12,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:12,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:12,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:12,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:12,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:13,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:15,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:15,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:15,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:15,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:15,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:15,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:15,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:16,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:16,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:16,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:17,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:17,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-13 13:03:17,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 26 [2020-10-13 13:03:17,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 13:03:17,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:17,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:03:17,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:03:17,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 13:03:17,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:17,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:17,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:17,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:17,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:17,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:17,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:17,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:17,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:17,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:17,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:18,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-13 13:03:18,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:03:18,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1164 [2020-10-13 13:03:18,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:18,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:03:18,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 13:03:18,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 13:03:18,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:18,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:18,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:18,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 13:03:18,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:03:18,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-13 13:03:18,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:18,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:03:18,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:03:18,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 13:03:18,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:18,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:18,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:18,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:03:18,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:03:18,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 13:03:18,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:03:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:18,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:03:18,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:18,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:18,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:18,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:18,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:18,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:03:18,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:18,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:03:18,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:18,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:03:18,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:18,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:03:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:18,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:18,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:03:18,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:18,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:18,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:18,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:03:18,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:18,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:03:18,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:18,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:03:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:18,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:18,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:03:18,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:18,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:18,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:18,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:03:18,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:03:18,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:03:18,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:18,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 13:03:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:18,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:18,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:18,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:18,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:18,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:18,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:18,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:03:18,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:18,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:18,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:03:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:18,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:18,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:03:18,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:18,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:03:18,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:18,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:18,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 13:03:18,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:18,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:18,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:18,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:18,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:03:18,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:18,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:18,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:18,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:18,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:18,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:18,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:18,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:18,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:18,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:18,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:18,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:03:18,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:18,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:18,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:18,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:18,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:18,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:03:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:18,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:18,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:03:18,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:18,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:03:18,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:18,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:18,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:18,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:18,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:18,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:03:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:18,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:18,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:18,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:18,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:03:18,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:18,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:18,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:18,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:18,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:18,510 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 28 proven. 46 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 13:03:18,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486583179] [2020-10-13 13:03:18,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:03:18,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 13:03:18,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757259500] [2020-10-13 13:03:18,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 13:03:18,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:03:18,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 13:03:18,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 13:03:18,512 INFO L87 Difference]: Start difference. First operand 85 states and 127 transitions. Second operand 8 states. [2020-10-13 13:03:18,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:03:18,617 INFO L93 Difference]: Finished difference Result 154 states and 241 transitions. [2020-10-13 13:03:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 13:03:18,618 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 95 [2020-10-13 13:03:18,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:03:18,619 INFO L225 Difference]: With dead ends: 154 [2020-10-13 13:03:18,619 INFO L226 Difference]: Without dead ends: 75 [2020-10-13 13:03:18,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:03:18,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-13 13:03:18,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-10-13 13:03:18,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-13 13:03:18,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 99 transitions. [2020-10-13 13:03:18,630 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 99 transitions. Word has length 95 [2020-10-13 13:03:18,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:03:18,630 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 99 transitions. [2020-10-13 13:03:18,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 13:03:18,630 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 99 transitions. [2020-10-13 13:03:18,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-13 13:03:18,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:03:18,632 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 8, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:03:18,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 13:03:18,633 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:03:18,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:03:18,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1115548584, now seen corresponding path program 4 times [2020-10-13 13:03:18,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:03:18,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2131935182] [2020-10-13 13:03:18,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:03:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:18,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:18,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:19,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:20,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:20,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:20,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:20,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:22,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:23,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:23,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-13 13:03:23,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 30 [2020-10-13 13:03:23,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 13:03:23,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:23,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:03:23,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:03:23,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:03:23,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:23,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:03:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:23,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:23,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:23,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:03:23,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:23,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:03:23,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:23,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:23,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:03:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:23,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:23,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:23,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:23,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:23,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:23,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:23,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:23,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:24,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:24,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:24,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:25,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:25,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:25,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:26,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:26,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:27,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:27,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:27,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:28,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:28,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:28,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:28,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:28,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:28,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:28,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:28,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:28,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:28,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 13:03:28,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 27 [2020-10-13 13:03:28,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-13 13:03:28,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:28,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:03:28,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 13:03:28,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-13 13:03:28,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:28,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:28,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:28,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:28,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:28,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:28,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:29,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:29,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-13 13:03:29,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:03:29,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 508 [2020-10-13 13:03:29,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:03:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:03:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-13 13:03:29,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:29,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:29,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:29,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:29,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:29,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:29,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:29,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:29,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:29,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:03:29,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:03:29,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 635 [2020-10-13 13:03:29,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:29,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:03:29,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:29,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 13:03:29,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:29,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:29,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:29,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:29,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:29,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:29,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:03:29,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:03:29,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 13:03:29,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:29,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:03:29,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:29,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:03:29,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:29,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:29,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:29,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:29,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:29,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:29,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:03:29,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:29,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:03:29,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:29,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:03:29,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:29,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:03:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:29,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:29,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:29,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:03:29,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:29,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:29,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:29,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:03:29,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:29,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:03:29,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:29,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:03:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:29,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:29,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:29,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:29,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:29,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:29,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:29,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:03:29,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:29,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:03:29,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:29,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 13:03:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:29,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:29,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:29,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:29,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:29,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:03:29,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:29,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:03:29,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:03:29,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:03:29,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:30,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 13:03:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:30,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:30,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:30,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:30,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:30,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:30,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:30,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:30,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:30,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:30,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:35,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 13:03:35,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-13 13:03:35,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:03:35,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:35,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:35,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-13 13:03:35,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:35,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:35,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:35,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:35,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 13:03:35,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:35,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:03:35,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:35,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:35,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:35,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:35,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:35,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:35,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:35,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:03:35,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:35,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:03:35,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:35,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:35,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:35,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:35,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:35,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:35,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:35,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:03:35,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:35,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:35,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:35,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:35,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:35,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:35,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:35,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:35,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:35,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:35,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:35,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:35,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:35,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:03:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:35,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:35,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:03:35,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:35,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:03:35,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:35,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:35,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:35,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:35,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:35,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:03:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:35,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:35,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:35,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:35,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:03:35,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:35,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:35,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:35,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:35,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:35,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 13:03:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:35,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:35,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:03:35,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:35,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:35,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:35,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:35,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:35,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:35,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:35,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:35,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:35,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:35,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:35,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:35,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:35,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:35,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:35,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:35,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:35,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:03:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:35,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:35,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:03:35,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:35,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:03:35,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:35,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:35,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:35,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:35,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:35,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:03:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:35,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:35,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:35,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:35,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:35,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:35,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:35,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:35,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:35,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:35,094 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 49 proven. 121 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2020-10-13 13:03:35,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2131935182] [2020-10-13 13:03:35,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:03:35,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 13:03:35,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959440244] [2020-10-13 13:03:35,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:03:35,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:03:35,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:03:35,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:03:35,097 INFO L87 Difference]: Start difference. First operand 75 states and 99 transitions. Second operand 11 states. [2020-10-13 13:03:35,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:03:35,340 INFO L93 Difference]: Finished difference Result 158 states and 230 transitions. [2020-10-13 13:03:35,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:03:35,343 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 137 [2020-10-13 13:03:35,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:03:35,344 INFO L225 Difference]: With dead ends: 158 [2020-10-13 13:03:35,345 INFO L226 Difference]: Without dead ends: 82 [2020-10-13 13:03:35,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:03:35,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-13 13:03:35,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-13 13:03:35,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-13 13:03:35,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 106 transitions. [2020-10-13 13:03:35,354 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 106 transitions. Word has length 137 [2020-10-13 13:03:35,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:03:35,354 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 106 transitions. [2020-10-13 13:03:35,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:03:35,354 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 106 transitions. [2020-10-13 13:03:35,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-13 13:03:35,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:03:35,356 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:03:35,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 13:03:35,357 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:03:35,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:03:35,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1643058009, now seen corresponding path program 5 times [2020-10-13 13:03:35,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:03:35,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499059692] [2020-10-13 13:03:35,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:03:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:35,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:35,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:39,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:39,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:39,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:39,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:39,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:39,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:40,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:40,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 13:03:40,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-13 13:03:40,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 13:03:40,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:40,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:03:40,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:03:40,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:03:40,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:40,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:03:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:40,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:40,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:40,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:03:40,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:40,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:03:40,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:40,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:40,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:40,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:40,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:40,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:03:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:40,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:40,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:40,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:40,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:40,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:40,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:40,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:40,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:40,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:44,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:44,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:44,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:44,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:45,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:45,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:45,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:45,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:45,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-13 13:03:45,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-13 13:03:45,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 13:03:45,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:45,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 13:03:45,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 13:03:45,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:03:45,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:45,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:45,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:45,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:45,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:45,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:45,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:45,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:45,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:46,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:46,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:46,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:46,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:46,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:46,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:46,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:46,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:46,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:46,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:46,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:46,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:46,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:48,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:48,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:48,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:48,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:49,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:50,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:50,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 13:03:50,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 25 [2020-10-13 13:03:50,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 13:03:50,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:50,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:03:50,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:03:50,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:03:50,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:50,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:50,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:50,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:50,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:50,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:50,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:03:50,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:03:50,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 526 [2020-10-13 13:03:50,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:50,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:03:50,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:50,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 13:03:50,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:50,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:50,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:50,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:51,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:51,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:03:51,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:03:51,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 13:03:51,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:51,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:03:51,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:51,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:03:51,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:03:51,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:51,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:51,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:51,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:51,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:51,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:03:51,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:51,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:03:51,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:51,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:03:51,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:03:51,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:03:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:51,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:51,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:51,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:03:51,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:51,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:03:51,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:51,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:03:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:03:51,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:51,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:03:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:51,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:51,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:51,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:51,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:51,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:03:51,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:51,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:03:51,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:51,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:03:51,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:03:51,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 13:03:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:51,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:51,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:51,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:51,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:51,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:51,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:52,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:03:52,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:03:52,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 891 [2020-10-13 13:03:52,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:52,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:03:52,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:03:52,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-13 13:03:52,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:52,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:52,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:52,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:03:52,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:03:52,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 13:03:52,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:52,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:03:52,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:52,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:03:52,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:52,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:52,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:52,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:52,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:52,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:52,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:52,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:03:52,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:52,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:03:52,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:52,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:03:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:52,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:52,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:03:52,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:52,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:52,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:03:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:03:52,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:52,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:03:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:52,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:52,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:52,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:52,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:52,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:03:52,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:52,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:03:52,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:52,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:03:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:52,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:52,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:03:52,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:52,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:03:52,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 13:03:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:52,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:52,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:52,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:52,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:03:52,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:52,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:03:52,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:52,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:52,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:52,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:52,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:52,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:03:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:52,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:52,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:52,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:52,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:52,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:52,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:52,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:52,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:52,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:52,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:03:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:52,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:52,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:03:52,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:52,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:52,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:52,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:52,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:52,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:52,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:52,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:03:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:52,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:52,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:03:52,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:52,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:03:52,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:52,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:52,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:52,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:52,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:52,214 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 60 proven. 132 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2020-10-13 13:03:52,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499059692] [2020-10-13 13:03:52,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:03:52,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 13:03:52,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338595513] [2020-10-13 13:03:52,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:03:52,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:03:52,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:03:52,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:03:52,216 INFO L87 Difference]: Start difference. First operand 82 states and 106 transitions. Second operand 14 states. [2020-10-13 13:03:52,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:03:52,800 INFO L93 Difference]: Finished difference Result 166 states and 248 transitions. [2020-10-13 13:03:52,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 13:03:52,801 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 123 [2020-10-13 13:03:52,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:03:52,804 INFO L225 Difference]: With dead ends: 166 [2020-10-13 13:03:52,804 INFO L226 Difference]: Without dead ends: 92 [2020-10-13 13:03:52,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=490, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:03:52,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-13 13:03:52,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 86. [2020-10-13 13:03:52,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-13 13:03:52,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 108 transitions. [2020-10-13 13:03:52,819 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 108 transitions. Word has length 123 [2020-10-13 13:03:52,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:03:52,820 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 108 transitions. [2020-10-13 13:03:52,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:03:52,820 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 108 transitions. [2020-10-13 13:03:52,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-13 13:03:52,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:03:52,822 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:03:52,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 13:03:52,822 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:03:52,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:03:52,822 INFO L82 PathProgramCache]: Analyzing trace with hash -46122593, now seen corresponding path program 6 times [2020-10-13 13:03:52,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:03:52,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678273880] [2020-10-13 13:03:52,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:03:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:52,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:52,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:53,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:53,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:53,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:53,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:56,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:56,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:56,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:56,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:56,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:56,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:57,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:57,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:57,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 13:03:57,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-13 13:03:57,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:03:57,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:57,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:03:57,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:03:57,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:03:57,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:57,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:03:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:57,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:57,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:03:57,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:03:57,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:03:57,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:03:57,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:03:57,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:03:57,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:03:57,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:03:57,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:03:57,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:03:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:03:57,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:57,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:57,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:57,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:57,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:57,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:58,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:58,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:58,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:58,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:58,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:58,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:58,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:58,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:58,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:03:58,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:02,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:02,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-13 13:04:02,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-13 13:04:02,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 13:04:02,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:02,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 13:04:02,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:04:02,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 13:04:02,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:02,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:04:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:02,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:02,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:02,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:02,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:02,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:02,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:03,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:03,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:03,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:03,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:03,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:07,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:07,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 13:04:07,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-13 13:04:07,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 13:04:07,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:07,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:04:07,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:07,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 13:04:07,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:07,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:04:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:07,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:07,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:07,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:07,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:07,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:07,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:08,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:08,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:04:08,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:04:08,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 843 [2020-10-13 13:04:08,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:08,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:04:08,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:08,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 13:04:08,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:08,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:04:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:08,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:08,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:08,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:08,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:08,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:04:08,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:04:08,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 13:04:08,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:08,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:04:08,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:08,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 13:04:08,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:08,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:04:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:08,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:08,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:08,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:08,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:04:08,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:04:08,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:04:08,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:08,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:04:08,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:08,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:04:08,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:08,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:04:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:08,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:08,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:08,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:08,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:08,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:04:08,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:08,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:04:08,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:08,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:04:08,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:08,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 13:04:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:08,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:08,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:08,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:04:08,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:08,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:04:08,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:08,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:04:08,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:08,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:04:08,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:08,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 13:04:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:08,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:08,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:08,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:04:08,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:08,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:04:08,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:08,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:04:08,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:08,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:04:08,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:08,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:04:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:08,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:08,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:08,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:04:08,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:08,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:04:08,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:08,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:08,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:08,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:08,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:08,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:04:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:08,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:08,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:08,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:08,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:08,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:04:08,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:08,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:04:08,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:08,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:04:08,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:08,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:04:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:08,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:08,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:08,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:08,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 13:04:08,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:04:08,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 13:04:08,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:04:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:04:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:04:08,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:08,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 13:04:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:08,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:08,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:08,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:04:08,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:08,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:04:08,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:04:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:04:08,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:08,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 13:04:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:04:08,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:04:08,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:04:08,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:04:08,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:04:08,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:04:08,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:04:08,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:04:08,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:04:08,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:04:08,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:04:08,957 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 57 proven. 66 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-13 13:04:08,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678273880] [2020-10-13 13:04:08,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:04:08,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-13 13:04:08,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760489217] [2020-10-13 13:04:08,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 13:04:08,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:04:08,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 13:04:08,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:04:08,960 INFO L87 Difference]: Start difference. First operand 86 states and 108 transitions. Second operand 15 states. [2020-10-13 13:04:09,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:04:09,366 INFO L93 Difference]: Finished difference Result 161 states and 222 transitions. [2020-10-13 13:04:09,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:04:09,366 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 95 [2020-10-13 13:04:09,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:04:09,367 INFO L225 Difference]: With dead ends: 161 [2020-10-13 13:04:09,367 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 13:04:09,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:04:09,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 13:04:09,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 13:04:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 13:04:09,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 13:04:09,370 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 95 [2020-10-13 13:04:09,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:04:09,371 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 13:04:09,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 13:04:09,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 13:04:09,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 13:04:09,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 13:04:09,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 13:04:10,102 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 15 [2020-10-13 13:04:10,357 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 24 [2020-10-13 13:04:10,361 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-13 13:04:10,361 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 13:04:10,361 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 13:04:10,362 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-13 13:04:10,362 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 13:04:10,362 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 13:04:10,362 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 39) no Hoare annotation was computed. [2020-10-13 13:04:10,362 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 35 42) the Hoare annotation is: true [2020-10-13 13:04:10,362 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 35 42) no Hoare annotation was computed. [2020-10-13 13:04:10,362 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 35 42) no Hoare annotation was computed. [2020-10-13 13:04:10,363 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-13 13:04:10,363 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-10-13 13:04:10,363 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (= main_~x~0 4) [2020-10-13 13:04:10,363 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-10-13 13:04:10,363 INFO L268 CegarLoopResult]: For program point L38-2(lines 38 40) no Hoare annotation was computed. [2020-10-13 13:04:10,363 INFO L271 CegarLoopResult]: At program point fibo2ENTRY(lines 17 25) the Hoare annotation is: true [2020-10-13 13:04:10,363 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (< 1 fibo2_~n)) [2020-10-13 13:04:10,364 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-10-13 13:04:10,364 INFO L264 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (and (or (<= 4 fibo2_~n) (and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|))) (= fibo2_~n |fibo2_#in~n|) (<= 2 |fibo2_#in~n|)) [2020-10-13 13:04:10,364 INFO L268 CegarLoopResult]: For program point L20(lines 20 24) no Hoare annotation was computed. [2020-10-13 13:04:10,364 INFO L268 CegarLoopResult]: For program point L23-3(line 23) no Hoare annotation was computed. [2020-10-13 13:04:10,364 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-10-13 13:04:10,364 INFO L268 CegarLoopResult]: For program point fibo2FINAL(lines 17 25) no Hoare annotation was computed. [2020-10-13 13:04:10,364 INFO L268 CegarLoopResult]: For program point fibo2EXIT(lines 17 25) no Hoare annotation was computed. [2020-10-13 13:04:10,365 INFO L271 CegarLoopResult]: At program point fibo1ENTRY(lines 7 15) the Hoare annotation is: true [2020-10-13 13:04:10,365 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (<= 2 |fibo1_#in~n|) (= fibo1_~n |fibo1_#in~n|)) [2020-10-13 13:04:10,365 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-10-13 13:04:10,365 INFO L264 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (and (or (and (<= |fibo1_#t~ret0| 1) (<= 1 |fibo1_#t~ret0|) (<= 2 |fibo1_#in~n|)) (not (<= |fibo1_#in~n| 3))) (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (or (and (<= 2 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 2) .cse0) (and .cse0 (<= fibo1_~n 3)) (and (<= 5 fibo1_~n) .cse0)))) [2020-10-13 13:04:10,365 INFO L268 CegarLoopResult]: For program point fibo1FINAL(lines 7 15) no Hoare annotation was computed. [2020-10-13 13:04:10,365 INFO L268 CegarLoopResult]: For program point L10(lines 10 14) no Hoare annotation was computed. [2020-10-13 13:04:10,365 INFO L268 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-10-13 13:04:10,366 INFO L268 CegarLoopResult]: For program point L8(lines 8 14) no Hoare annotation was computed. [2020-10-13 13:04:10,366 INFO L268 CegarLoopResult]: For program point fibo1EXIT(lines 7 15) no Hoare annotation was computed. [2020-10-13 13:04:10,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:04:10 BoogieIcfgContainer [2020-10-13 13:04:10,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 13:04:10,374 INFO L168 Benchmark]: Toolchain (without parser) took 133939.79 ms. Allocated memory was 139.5 MB in the beginning and 779.1 MB in the end (delta: 639.6 MB). Free memory was 101.5 MB in the beginning and 660.8 MB in the end (delta: -559.3 MB). Peak memory consumption was 703.1 MB. Max. memory is 7.1 GB. [2020-10-13 13:04:10,375 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 13:04:10,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.22 ms. Allocated memory is still 139.5 MB. Free memory was 101.3 MB in the beginning and 91.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-10-13 13:04:10,376 INFO L168 Benchmark]: Boogie Preprocessor took 98.86 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 91.9 MB in the beginning and 181.4 MB in the end (delta: -89.5 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-10-13 13:04:10,377 INFO L168 Benchmark]: RCFGBuilder took 260.80 ms. Allocated memory is still 202.4 MB. Free memory was 181.4 MB in the beginning and 167.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-10-13 13:04:10,378 INFO L168 Benchmark]: TraceAbstraction took 133333.47 ms. Allocated memory was 202.4 MB in the beginning and 779.1 MB in the end (delta: 576.7 MB). Free memory was 167.8 MB in the beginning and 660.8 MB in the end (delta: -493.0 MB). Peak memory consumption was 706.5 MB. Max. memory is 7.1 GB. [2020-10-13 13:04:10,381 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 241.22 ms. Allocated memory is still 139.5 MB. Free memory was 101.3 MB in the beginning and 91.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.86 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 91.9 MB in the beginning and 181.4 MB in the end (delta: -89.5 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 260.80 ms. Allocated memory is still 202.4 MB. Free memory was 181.4 MB in the beginning and 167.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 133333.47 ms. Allocated memory was 202.4 MB in the beginning and 779.1 MB in the end (delta: 576.7 MB). Free memory was 167.8 MB in the beginning and 660.8 MB in the end (delta: -493.0 MB). Peak memory consumption was 706.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 39]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 132.2s, OverallIterations: 17, TraceHistogramMax: 11, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 510 SDtfs, 406 SDslu, 2706 SDs, 0 SdLazy, 2322 SolverSat, 238 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 556 GetRequests, 364 SyntacticMatches, 2 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 51 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 386 PreInvPairs, 692 NumberOfFragments, 82 HoareAnnotationTreeSize, 386 FomulaSimplifications, 6365 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 11 FomulaSimplificationsInter, 1345 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 127.8s InterpolantComputationTime, 1114 NumberOfCodeBlocks, 1114 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1097 ConstructedInterpolants, 0 QuantifiedInterpolants, 179737 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 1452/2008 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...