/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i25_o25-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:55:01,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:55:01,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:55:01,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:55:01,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:55:01,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:55:01,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:55:01,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:55:01,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:55:01,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:55:01,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:55:01,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:55:01,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:55:01,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:55:01,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:55:01,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:55:01,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:55:01,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:55:01,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:55:01,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:55:01,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:55:01,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:55:01,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:55:01,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:55:01,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:55:01,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:55:01,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:55:01,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:55:01,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:55:01,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:55:01,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:55:01,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:55:01,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:55:01,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:55:01,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:55:01,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:55:01,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:55:01,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:55:01,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:55:01,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:55:01,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:55:01,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:55:01,231 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:55:01,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:55:01,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:55:01,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:55:01,236 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:55:01,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:55:01,238 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:55:01,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:55:01,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:55:01,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:55:01,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:55:01,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:55:01,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:55:01,239 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:55:01,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:55:01,239 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:55:01,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:55:01,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:55:01,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:55:01,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:55:01,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:55:01,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:55:01,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:55:01,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:55:01,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:55:01,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:55:01,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:55:01,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:55:01,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:55:01,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:55:01,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:55:01,799 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:55:01,804 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:55:01,807 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:55:01,807 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:55:01,809 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i25_o25-1.c [2020-09-25 00:55:01,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f68168b1/ad06a668702b42b1a209dfd2c027464b/FLAG70939fabb [2020-09-25 00:55:02,428 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:55:02,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i25_o25-1.c [2020-09-25 00:55:02,438 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f68168b1/ad06a668702b42b1a209dfd2c027464b/FLAG70939fabb [2020-09-25 00:55:02,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f68168b1/ad06a668702b42b1a209dfd2c027464b [2020-09-25 00:55:02,793 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:55:02,798 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:55:02,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:55:02,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:55:02,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:55:02,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:55:02" (1/1) ... [2020-09-25 00:55:02,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bc47136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:02, skipping insertion in model container [2020-09-25 00:55:02,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:55:02" (1/1) ... [2020-09-25 00:55:02,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:55:02,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:55:03,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:55:03,074 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:55:03,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:55:03,113 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:55:03,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:03 WrapperNode [2020-09-25 00:55:03,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:55:03,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:55:03,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:55:03,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:55:03,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:03" (1/1) ... [2020-09-25 00:55:03,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:03" (1/1) ... [2020-09-25 00:55:03,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:03" (1/1) ... [2020-09-25 00:55:03,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:03" (1/1) ... [2020-09-25 00:55:03,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:03" (1/1) ... [2020-09-25 00:55:03,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:03" (1/1) ... [2020-09-25 00:55:03,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:03" (1/1) ... [2020-09-25 00:55:03,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:55:03,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:55:03,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:55:03,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:55:03,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:55:03,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:55:03,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:55:03,313 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 00:55:03,313 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:55:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:55:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:55:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 00:55:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:55:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:55:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:55:03,501 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:55:03,502 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:55:03,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:55:03 BoogieIcfgContainer [2020-09-25 00:55:03,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:55:03,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:55:03,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:55:03,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:55:03,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:55:02" (1/3) ... [2020-09-25 00:55:03,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f21af52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:55:03, skipping insertion in model container [2020-09-25 00:55:03,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:55:03" (2/3) ... [2020-09-25 00:55:03,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f21af52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:55:03, skipping insertion in model container [2020-09-25 00:55:03,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:55:03" (3/3) ... [2020-09-25 00:55:03,519 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i25_o25-1.c [2020-09-25 00:55:03,554 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:55:03,583 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:55:03,634 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:55:03,676 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:55:03,676 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:55:03,676 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:55:03,677 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:55:03,677 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:55:03,677 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:55:03,677 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:55:03,677 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:55:03,698 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-25 00:55:03,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 00:55:03,706 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:03,707 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:03,708 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:03,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:03,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-09-25 00:55:03,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:03,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218246426] [2020-09-25 00:55:03,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:03,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:03,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:03,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 00:55:03,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:03,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-25 00:55:03,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:03,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:55:03,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:03,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:55:03,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:55:03,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:03,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:03,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:03,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:03,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:03,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:55:03,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:03,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:03,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:03,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:03,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:03,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:03,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:04,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:04,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:04,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:04,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 00:55:04,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:04,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:55:04,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:04,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:55:04,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:04,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:55:04,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218246426] [2020-09-25 00:55:04,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:55:04,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:55:04,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537871738] [2020-09-25 00:55:04,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:55:04,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:04,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:55:04,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:55:04,079 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-25 00:55:04,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:04,202 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 00:55:04,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:55:04,206 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 00:55:04,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:04,218 INFO L225 Difference]: With dead ends: 37 [2020-09-25 00:55:04,218 INFO L226 Difference]: Without dead ends: 23 [2020-09-25 00:55:04,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:55:04,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-25 00:55:04,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-25 00:55:04,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-25 00:55:04,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-25 00:55:04,284 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-09-25 00:55:04,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:04,284 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-25 00:55:04,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:55:04,285 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-25 00:55:04,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 00:55:04,289 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:04,290 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:04,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:55:04,291 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:04,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:04,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times [2020-09-25 00:55:04,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:04,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531524302] [2020-09-25 00:55:04,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:04,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:04,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:04,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 00:55:04,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:04,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-25 00:55:04,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:04,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:55:04,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:04,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 00:55:04,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:04,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:04,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:04,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:04,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:04,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:04,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:55:04,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:04,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:04,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:04,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:04,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:04,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:04,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:04,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 00:55:04,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:04,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:55:04,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:04,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 00:55:04,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:04,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:04,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:04,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:04,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:04,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:04,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 00:55:04,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:04,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:04,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:04,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:04,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:04,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 00:55:04,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531524302] [2020-09-25 00:55:04,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:04,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 00:55:04,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196890148] [2020-09-25 00:55:04,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:55:04,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:04,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:55:04,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:55:04,795 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-09-25 00:55:04,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:04,868 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-25 00:55:04,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:55:04,869 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-25 00:55:04,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:04,871 INFO L225 Difference]: With dead ends: 34 [2020-09-25 00:55:04,871 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 00:55:04,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:55:04,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 00:55:04,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 00:55:04,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 00:55:04,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-25 00:55:04,887 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2020-09-25 00:55:04,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:04,888 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-25 00:55:04,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:55:04,888 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-25 00:55:04,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 00:55:04,890 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:04,891 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:04,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:55:04,891 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:04,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:04,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times [2020-09-25 00:55:04,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:04,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1474860675] [2020-09-25 00:55:04,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:04,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:05,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:05,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 00:55:05,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:05,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 00:55:05,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:55:05,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:05,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:55:05,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:05,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:05,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:05,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:05,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:05,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:05,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:55:05,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:05,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:05,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:05,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:05,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:05,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:05,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:05,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 00:55:05,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:05,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:55:05,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:05,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 00:55:05,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:05,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:05,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:05,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:05,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:05,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:05,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 00:55:05,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:05,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:05,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:05,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:55:05,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:05,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:05,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:05,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:05,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:05,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:05,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:55:05,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:05,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:05,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:05,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:05,437 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 00:55:05,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1474860675] [2020-09-25 00:55:05,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:05,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 00:55:05,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222038599] [2020-09-25 00:55:05,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:55:05,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:05,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:55:05,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:55:05,440 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 8 states. [2020-09-25 00:55:05,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:05,509 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 00:55:05,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:55:05,510 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-09-25 00:55:05,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:05,511 INFO L225 Difference]: With dead ends: 39 [2020-09-25 00:55:05,511 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 00:55:05,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:55:05,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 00:55:05,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-25 00:55:05,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-25 00:55:05,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-25 00:55:05,519 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32 [2020-09-25 00:55:05,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:05,520 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-25 00:55:05,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:55:05,520 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-25 00:55:05,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 00:55:05,522 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:05,522 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:05,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:55:05,522 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:05,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:05,523 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times [2020-09-25 00:55:05,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:05,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151586046] [2020-09-25 00:55:05,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:05,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:05,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:05,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:55:05,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:05,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-25 00:55:05,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:05,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:55:05,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:05,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 00:55:05,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:05,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:05,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:05,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:05,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:05,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:05,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:55:05,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:05,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:05,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:05,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:05,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:05,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:05,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:05,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:05,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:05,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:05,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 00:55:05,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:05,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:55:05,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:05,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 00:55:05,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:06,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:06,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:06,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:06,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:06,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:06,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 00:55:06,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:06,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:06,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:06,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:55:06,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:06,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:06,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:06,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:06,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:06,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:06,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 00:55:06,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:06,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:06,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:06,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:55:06,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:06,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:06,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:06,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:06,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:06,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:06,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:55:06,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:06,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:06,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:06,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:06,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:06,295 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 00:55:06,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [151586046] [2020-09-25 00:55:06,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:06,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:55:06,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257895596] [2020-09-25 00:55:06,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:55:06,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:06,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:55:06,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:55:06,299 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 10 states. [2020-09-25 00:55:06,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:06,391 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-09-25 00:55:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 00:55:06,392 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2020-09-25 00:55:06,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:06,394 INFO L225 Difference]: With dead ends: 44 [2020-09-25 00:55:06,394 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 00:55:06,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:55:06,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 00:55:06,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 00:55:06,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 00:55:06,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 00:55:06,404 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40 [2020-09-25 00:55:06,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:06,404 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 00:55:06,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:55:06,405 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 00:55:06,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 00:55:06,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:06,406 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:06,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:55:06,407 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:06,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:06,408 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times [2020-09-25 00:55:06,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:06,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518630107] [2020-09-25 00:55:06,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:06,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:06,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:06,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 00:55:06,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:06,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 00:55:06,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 00:55:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 00:55:06,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:06,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:06,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:06,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:06,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:06,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:06,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:55:06,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:06,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:06,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:06,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:06,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:06,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:06,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:06,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:06,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:06,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:06,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-25 00:55:06,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:06,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 00:55:06,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:06,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 00:55:06,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:06,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:06,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:07,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:07,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:07,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:07,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-25 00:55:07,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:07,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:55:07,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:07,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:07,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:07,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:07,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:07,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:07,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 00:55:07,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:07,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:07,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:07,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:55:07,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:07,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:07,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:07,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:07,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:07,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:07,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 00:55:07,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:07,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:07,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:07,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:55:07,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:07,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:07,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:07,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:07,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:07,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:07,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:55:07,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:07,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:07,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:07,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:07,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:07,354 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 39 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-25 00:55:07,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518630107] [2020-09-25 00:55:07,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:07,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:55:07,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198147285] [2020-09-25 00:55:07,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:55:07,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:07,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:55:07,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:55:07,357 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 10 states. [2020-09-25 00:55:07,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:07,478 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-25 00:55:07,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:55:07,479 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2020-09-25 00:55:07,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:07,481 INFO L225 Difference]: With dead ends: 49 [2020-09-25 00:55:07,481 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 00:55:07,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:55:07,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 00:55:07,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-25 00:55:07,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 00:55:07,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-25 00:55:07,498 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48 [2020-09-25 00:55:07,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:07,500 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-25 00:55:07,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:55:07,501 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-25 00:55:07,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 00:55:07,505 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:07,505 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:07,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:55:07,505 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:07,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:07,507 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times [2020-09-25 00:55:07,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:07,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748017784] [2020-09-25 00:55:07,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:07,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:07,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:07,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 00:55:07,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:07,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-09-25 00:55:07,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:07,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:55:07,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:07,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:55:07,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:07,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:07,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:07,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:07,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:07,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:07,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:07,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:07,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:07,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:07,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:07,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:07,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:07,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:08,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:08,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:08,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:08,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 00:55:08,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:08,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:55:08,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:08,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 00:55:08,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:08,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:08,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:08,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:08,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:08,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:08,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-25 00:55:08,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:08,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:08,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:08,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:55:08,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:08,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:08,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:08,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:08,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:08,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:08,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 00:55:08,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:08,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:08,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:08,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:55:08,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:08,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:08,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:08,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:08,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:08,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:08,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 00:55:08,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:08,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:08,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:08,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:55:08,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:08,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:08,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:08,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:08,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:08,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:08,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 00:55:08,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:08,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:08,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:08,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:55:08,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:08,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:08,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:08,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:08,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:08,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:08,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:55:08,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:08,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:08,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:08,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:08,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:08,872 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 5 proven. 68 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-25 00:55:08,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748017784] [2020-09-25 00:55:08,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:08,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 00:55:08,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902403978] [2020-09-25 00:55:08,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 00:55:08,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:08,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 00:55:08,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:55:08,875 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 12 states. [2020-09-25 00:55:08,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:08,996 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-09-25 00:55:08,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:55:08,997 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2020-09-25 00:55:08,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:08,998 INFO L225 Difference]: With dead ends: 54 [2020-09-25 00:55:08,998 INFO L226 Difference]: Without dead ends: 48 [2020-09-25 00:55:08,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2020-09-25 00:55:09,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-25 00:55:09,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-25 00:55:09,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-25 00:55:09,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-25 00:55:09,007 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56 [2020-09-25 00:55:09,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:09,008 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-25 00:55:09,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 00:55:09,008 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-25 00:55:09,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 00:55:09,009 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:09,009 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:09,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:55:09,010 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:09,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:09,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times [2020-09-25 00:55:09,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:09,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794677915] [2020-09-25 00:55:09,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:09,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:09,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:09,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:55:09,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:09,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-09-25 00:55:09,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:09,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 00:55:09,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:09,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:55:09,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:09,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:09,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:09,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:09,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:09,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:09,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:09,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:09,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:09,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:09,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:09,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:09,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:09,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:09,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:09,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-09-25 00:55:09,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:09,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 00:55:09,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:09,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 00:55:09,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:09,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:09,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:10,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:10,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:10,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:10,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-25 00:55:10,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:10,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:10,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:10,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:55:10,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:10,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:10,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:10,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:10,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:10,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:10,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-25 00:55:10,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:10,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:10,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:10,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:55:10,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:10,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:10,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:10,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:10,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:10,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:10,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 00:55:10,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:10,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:10,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:10,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:55:10,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:10,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:10,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:10,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:10,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:10,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:10,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 00:55:10,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:55:10,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:10,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:10,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:10,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:10,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:10,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:10,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 00:55:10,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:10,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:10,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:55:10,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:10,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:10,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:10,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:10,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:10,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:10,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:55:10,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:10,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:10,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:10,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:10,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:10,810 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 5 proven. 105 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-09-25 00:55:10,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794677915] [2020-09-25 00:55:10,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:10,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 00:55:10,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89500224] [2020-09-25 00:55:10,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 00:55:10,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:10,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 00:55:10,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-25 00:55:10,815 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 13 states. [2020-09-25 00:55:10,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:10,969 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 00:55:10,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:55:10,970 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2020-09-25 00:55:10,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:10,973 INFO L225 Difference]: With dead ends: 59 [2020-09-25 00:55:10,973 INFO L226 Difference]: Without dead ends: 53 [2020-09-25 00:55:10,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2020-09-25 00:55:10,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-25 00:55:10,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-25 00:55:10,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 00:55:10,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-09-25 00:55:10,988 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 64 [2020-09-25 00:55:10,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:10,989 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-09-25 00:55:10,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 00:55:10,989 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-09-25 00:55:10,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 00:55:10,994 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:10,995 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:10,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:55:10,995 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:10,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:10,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1977618599, now seen corresponding path program 7 times [2020-09-25 00:55:10,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:10,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [454284075] [2020-09-25 00:55:10,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:11,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:11,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:11,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 00:55:11,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:11,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-09-25 00:55:11,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:11,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 00:55:11,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:11,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 00:55:11,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:11,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:11,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:11,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:11,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:11,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:11,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:11,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:11,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:11,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:11,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:11,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:11,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:11,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:11,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:55:11,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:11,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-09-25 00:55:11,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:11,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 00:55:11,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:11,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 00:55:11,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:11,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:11,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:12,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:12,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:12,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:12,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-09-25 00:55:12,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:12,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:55:12,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:12,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:55:12,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:12,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:12,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:12,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:12,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:12,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:12,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-25 00:55:12,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:12,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:12,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:12,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:55:12,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:12,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:12,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:12,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:12,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:12,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:12,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-09-25 00:55:12,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:12,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:55:12,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:12,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:12,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:12,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:12,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:12,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:12,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 00:55:12,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:12,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:12,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:12,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:55:12,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:12,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:12,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:13,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:13,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:13,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:13,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 00:55:13,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:13,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:13,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:55:13,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:13,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:13,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:13,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:13,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:13,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:13,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 00:55:13,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:13,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:13,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:13,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:55:13,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:13,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:13,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:13,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:13,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:13,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:13,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:55:13,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:13,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:13,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:13,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:13,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:13,152 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 10 proven. 136 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-09-25 00:55:13,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [454284075] [2020-09-25 00:55:13,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:13,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 00:55:13,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287500525] [2020-09-25 00:55:13,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 00:55:13,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:13,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 00:55:13,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 00:55:13,155 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 13 states. [2020-09-25 00:55:13,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:13,300 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-25 00:55:13,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:55:13,300 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2020-09-25 00:55:13,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:13,302 INFO L225 Difference]: With dead ends: 64 [2020-09-25 00:55:13,302 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 00:55:13,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-25 00:55:13,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 00:55:13,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 00:55:13,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 00:55:13,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 00:55:13,311 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 72 [2020-09-25 00:55:13,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:13,311 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 00:55:13,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 00:55:13,311 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 00:55:13,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 00:55:13,313 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:13,313 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:13,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:55:13,313 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:13,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:13,314 INFO L82 PathProgramCache]: Analyzing trace with hash 555623729, now seen corresponding path program 8 times [2020-09-25 00:55:13,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:13,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852987577] [2020-09-25 00:55:13,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:13,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:13,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:13,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 00:55:13,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:13,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 487 [2020-09-25 00:55:13,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 00:55:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:13,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 00:55:13,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:13,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:13,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:13,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:13,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:13,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:13,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:13,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:13,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:13,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:13,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:13,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:13,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:13,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:14,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:14,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:55:14,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:14,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-09-25 00:55:14,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:14,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 00:55:14,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:14,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 00:55:14,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:14,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:14,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:14,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:14,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:55:14,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:14,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-09-25 00:55:14,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:14,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:55:14,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:14,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:55:14,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:14,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:14,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:15,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:15,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:15,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:15,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-09-25 00:55:15,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:55:15,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:55:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:15,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:15,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:15,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:15,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:15,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:15,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-25 00:55:15,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:15,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:15,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:15,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:55:15,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:15,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:15,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:15,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:15,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:15,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:15,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-25 00:55:15,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:15,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:15,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:15,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:55:15,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:15,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:15,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:15,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:15,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:15,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:15,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 00:55:15,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:55:15,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:15,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:15,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:15,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:15,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:15,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:15,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 00:55:15,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:15,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:15,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:15,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:55:15,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:15,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:15,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:15,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:15,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:15,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:15,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 00:55:15,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:55:15,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:15,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:15,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:15,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:15,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:15,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:15,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:55:15,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:15,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:15,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:15,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:15,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:15,992 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 16 proven. 166 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-09-25 00:55:15,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852987577] [2020-09-25 00:55:15,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:15,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 00:55:15,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446329251] [2020-09-25 00:55:15,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 00:55:15,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:15,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 00:55:15,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-25 00:55:15,995 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 14 states. [2020-09-25 00:55:16,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:16,181 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-25 00:55:16,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:55:16,182 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 80 [2020-09-25 00:55:16,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:16,184 INFO L225 Difference]: With dead ends: 69 [2020-09-25 00:55:16,184 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 00:55:16,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-09-25 00:55:16,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 00:55:16,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-25 00:55:16,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 00:55:16,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-25 00:55:16,192 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2020-09-25 00:55:16,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:16,193 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-25 00:55:16,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 00:55:16,193 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-25 00:55:16,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 00:55:16,194 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:16,194 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:16,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 00:55:16,194 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:16,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:16,195 INFO L82 PathProgramCache]: Analyzing trace with hash 777699815, now seen corresponding path program 9 times [2020-09-25 00:55:16,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:16,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1400814911] [2020-09-25 00:55:16,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:16,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:16,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:16,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 00:55:16,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:16,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-09-25 00:55:16,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:16,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 00:55:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 00:55:16,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:16,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:16,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:16,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:16,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:16,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:16,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:16,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:16,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:16,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:16,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:16,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:16,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:16,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:16,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:17,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:17,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 00:55:17,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:17,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 562 [2020-09-25 00:55:17,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:17,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 00:55:17,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:17,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 00:55:17,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:17,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:17,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:17,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:17,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:55:17,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:17,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-09-25 00:55:17,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:17,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 00:55:17,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:17,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 00:55:17,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:17,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:17,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:18,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:18,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:55:18,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:18,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-09-25 00:55:18,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:55:18,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:18,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:55:18,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:18,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:18,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:18,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:18,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:18,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:18,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-09-25 00:55:18,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:18,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:55:18,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:18,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:55:18,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:18,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:18,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:18,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:18,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:18,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:18,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 00:55:18,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:18,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:18,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:18,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:55:18,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:18,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:19,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:19,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:19,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:19,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:19,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 00:55:19,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:19,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:19,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:19,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:55:19,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:19,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:19,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:19,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:19,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:19,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:19,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 00:55:19,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:19,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:19,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:19,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:55:19,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:19,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:19,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:19,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:19,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:19,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:19,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 00:55:19,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:55:19,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:19,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:19,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:19,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:19,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:19,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:19,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 00:55:19,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:19,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:19,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:19,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:55:19,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:19,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:19,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:19,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:19,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:19,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:19,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:55:19,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:19,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:19,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:19,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:19,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 33 proven. 210 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-09-25 00:55:19,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1400814911] [2020-09-25 00:55:19,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:19,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 00:55:19,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171825490] [2020-09-25 00:55:19,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 00:55:19,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:19,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 00:55:19,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:55:19,537 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 15 states. [2020-09-25 00:55:19,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:19,719 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2020-09-25 00:55:19,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 00:55:19,719 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 88 [2020-09-25 00:55:19,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:19,721 INFO L225 Difference]: With dead ends: 74 [2020-09-25 00:55:19,721 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 00:55:19,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-25 00:55:19,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 00:55:19,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-25 00:55:19,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 00:55:19,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-09-25 00:55:19,735 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 88 [2020-09-25 00:55:19,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:19,735 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-09-25 00:55:19,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 00:55:19,735 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-09-25 00:55:19,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-25 00:55:19,738 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:19,739 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:19,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 00:55:19,742 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:19,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:19,742 INFO L82 PathProgramCache]: Analyzing trace with hash 2145915377, now seen corresponding path program 10 times [2020-09-25 00:55:19,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:19,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533573620] [2020-09-25 00:55:19,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:19,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:20,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:20,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 00:55:20,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:20,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 621 [2020-09-25 00:55:20,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:20,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 00:55:20,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:20,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 00:55:20,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:20,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:20,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:20,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:20,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:20,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:20,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:20,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:20,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:20,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:20,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:20,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:20,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:20,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 00:55:20,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:20,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 565 [2020-09-25 00:55:20,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:20,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 00:55:20,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:20,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 00:55:20,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:21,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:21,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:21,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:21,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 00:55:21,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:21,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-09-25 00:55:21,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:21,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:55:21,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:21,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 00:55:21,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:21,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:21,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:21,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:21,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:55:21,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:21,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-09-25 00:55:21,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 00:55:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:21,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 00:55:21,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:21,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:21,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:22,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:22,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:55:22,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:22,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-09-25 00:55:22,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:22,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:55:22,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:22,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:55:22,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:22,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:22,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:22,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:22,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:22,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:22,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-25 00:55:22,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:22,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:55:22,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:22,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:55:22,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:22,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:22,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:22,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:22,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:22,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:22,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-25 00:55:22,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:22,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:55:22,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:22,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:22,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:23,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:23,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:23,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:23,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-25 00:55:23,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:23,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:23,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:23,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:55:23,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:23,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:23,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:23,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:23,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:23,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:23,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 00:55:23,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:23,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:23,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:23,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:55:23,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:23,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:23,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:23,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:23,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:23,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:23,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 00:55:23,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:23,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:23,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:23,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:55:23,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:23,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:23,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:23,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:23,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:23,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:23,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 00:55:23,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:23,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:23,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:23,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:55:23,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:23,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:23,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:23,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:23,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:23,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:23,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:55:23,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:23,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:23,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:23,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:23,392 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 24 proven. 266 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-09-25 00:55:23,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533573620] [2020-09-25 00:55:23,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:23,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 00:55:23,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517648558] [2020-09-25 00:55:23,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 00:55:23,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:23,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 00:55:23,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:55:23,395 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 16 states. [2020-09-25 00:55:23,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:23,616 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-25 00:55:23,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 00:55:23,616 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 96 [2020-09-25 00:55:23,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:23,618 INFO L225 Difference]: With dead ends: 79 [2020-09-25 00:55:23,618 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 00:55:23,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-25 00:55:23,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 00:55:23,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-25 00:55:23,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 00:55:23,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-09-25 00:55:23,626 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 96 [2020-09-25 00:55:23,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:23,626 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-09-25 00:55:23,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 00:55:23,627 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-09-25 00:55:23,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 00:55:23,627 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:23,628 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:23,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 00:55:23,628 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:23,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:23,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1180214055, now seen corresponding path program 11 times [2020-09-25 00:55:23,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:23,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1989919747] [2020-09-25 00:55:23,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:23,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:24,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:24,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 00:55:24,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:24,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 690 [2020-09-25 00:55:24,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:24,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 00:55:24,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:24,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 00:55:24,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:24,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:24,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:24,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:24,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:24,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:24,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:24,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:24,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:24,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:24,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:24,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:24,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 00:55:24,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:24,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-09-25 00:55:24,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:24,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 00:55:24,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:24,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 00:55:24,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:25,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:25,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:25,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:25,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 00:55:25,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:25,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 625 [2020-09-25 00:55:25,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:25,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 00:55:25,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:25,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 00:55:25,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:25,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:25,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:26,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:26,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 00:55:26,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:26,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 594 [2020-09-25 00:55:26,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:26,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:55:26,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:26,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 00:55:26,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:26,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:26,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:26,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:26,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:55:26,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:26,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-09-25 00:55:26,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:26,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 00:55:26,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:26,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 00:55:26,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:26,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:26,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:27,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:27,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:55:27,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:27,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-09-25 00:55:27,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:27,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:55:27,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:27,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:55:27,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:27,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:27,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:27,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:27,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:27,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:27,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-25 00:55:27,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:27,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:55:27,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:55:27,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:27,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:27,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:27,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:27,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:27,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:27,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-25 00:55:27,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:27,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:27,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:27,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:55:27,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:27,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:27,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:27,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:27,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:27,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:27,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-25 00:55:27,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:27,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:27,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:27,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:55:27,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:27,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:27,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:27,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:27,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:27,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:27,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 00:55:27,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:27,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:27,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:27,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:55:27,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:27,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:27,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:28,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:28,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:28,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:28,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 00:55:28,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:28,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:28,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:28,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:55:28,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:28,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:28,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:28,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:28,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:28,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:28,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 00:55:28,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:28,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:28,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:28,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:55:28,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:28,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:28,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:28,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:28,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:28,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:28,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:55:28,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:28,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:28,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:28,194 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 20 proven. 298 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-09-25 00:55:28,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1989919747] [2020-09-25 00:55:28,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:28,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 00:55:28,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866427388] [2020-09-25 00:55:28,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 00:55:28,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:28,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 00:55:28,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:55:28,196 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 17 states. [2020-09-25 00:55:28,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:28,427 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2020-09-25 00:55:28,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 00:55:28,428 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 104 [2020-09-25 00:55:28,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:28,429 INFO L225 Difference]: With dead ends: 84 [2020-09-25 00:55:28,430 INFO L226 Difference]: Without dead ends: 78 [2020-09-25 00:55:28,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-25 00:55:28,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-25 00:55:28,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-25 00:55:28,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 00:55:28,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-09-25 00:55:28,437 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 104 [2020-09-25 00:55:28,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:28,437 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-09-25 00:55:28,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 00:55:28,437 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-09-25 00:55:28,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 00:55:28,438 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:28,439 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:28,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 00:55:28,439 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:28,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:28,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1287598415, now seen corresponding path program 12 times [2020-09-25 00:55:28,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:28,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164336566] [2020-09-25 00:55:28,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:28,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:29,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:29,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-25 00:55:29,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:29,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 817 [2020-09-25 00:55:29,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:29,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 00:55:29,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:29,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 00:55:29,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:29,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:29,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:29,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:29,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:29,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:29,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:29,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:29,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:29,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:29,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:29,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:30,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:30,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 00:55:30,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:30,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-09-25 00:55:30,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:30,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 00:55:30,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:30,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-25 00:55:30,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:30,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:30,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:31,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:31,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 00:55:31,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:31,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 784 [2020-09-25 00:55:31,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 00:55:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 00:55:31,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:31,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:31,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:31,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:31,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 00:55:31,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:31,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-09-25 00:55:31,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:31,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 00:55:31,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:31,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 00:55:31,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:31,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:31,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:32,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:32,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 00:55:32,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:32,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-09-25 00:55:32,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:32,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:55:32,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:32,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 00:55:32,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:32,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:32,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:32,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:32,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:55:32,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:32,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-09-25 00:55:32,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:32,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 00:55:32,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:32,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 00:55:32,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:32,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:32,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:33,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:33,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:55:33,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:33,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-25 00:55:33,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:55:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:55:33,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:33,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:33,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:33,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:33,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:33,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:33,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-09-25 00:55:33,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:55:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:55:33,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:33,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:33,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:33,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:33,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:33,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:33,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 00:55:33,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:33,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:33,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:33,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:55:33,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:33,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:33,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:33,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:33,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:33,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:33,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-09-25 00:55:33,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:33,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:33,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:33,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:55:33,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:33,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:33,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:34,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:34,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:34,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:34,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 00:55:34,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:34,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:34,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:34,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:55:34,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:34,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:34,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:34,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:34,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:34,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:34,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 00:55:34,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:34,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:34,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:34,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:55:34,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:34,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:34,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:34,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:34,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:34,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:34,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 00:55:34,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:55:34,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:34,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:34,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:34,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:34,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:34,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:34,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:55:34,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:34,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:34,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:34,369 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 22 proven. 406 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-09-25 00:55:34,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164336566] [2020-09-25 00:55:34,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:34,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 00:55:34,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224417592] [2020-09-25 00:55:34,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 00:55:34,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:34,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 00:55:34,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-09-25 00:55:34,371 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 19 states. [2020-09-25 00:55:34,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:34,644 INFO L93 Difference]: Finished difference Result 89 states and 90 transitions. [2020-09-25 00:55:34,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 00:55:34,645 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 112 [2020-09-25 00:55:34,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:34,647 INFO L225 Difference]: With dead ends: 89 [2020-09-25 00:55:34,647 INFO L226 Difference]: Without dead ends: 83 [2020-09-25 00:55:34,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=349, Invalid=643, Unknown=0, NotChecked=0, Total=992 [2020-09-25 00:55:34,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-25 00:55:34,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-09-25 00:55:34,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-25 00:55:34,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2020-09-25 00:55:34,664 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 112 [2020-09-25 00:55:34,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:34,665 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2020-09-25 00:55:34,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 00:55:34,665 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2020-09-25 00:55:34,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-25 00:55:34,668 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:34,668 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:34,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 00:55:34,671 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:34,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:34,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1612559463, now seen corresponding path program 13 times [2020-09-25 00:55:34,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:34,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1171300370] [2020-09-25 00:55:34,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:34,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:35,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:35,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-25 00:55:35,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:35,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 943 [2020-09-25 00:55:35,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:35,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 00:55:35,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:35,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 00:55:35,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:35,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:35,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:35,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:35,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:35,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:35,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:35,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:35,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:35,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:35,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:35,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:35,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:35,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:36,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:36,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 00:55:36,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:36,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 880 [2020-09-25 00:55:36,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 00:55:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-25 00:55:36,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:36,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:36,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:37,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:37,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 00:55:37,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:37,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 876 [2020-09-25 00:55:37,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:37,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 00:55:37,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:37,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 00:55:37,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:37,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:37,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:38,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:38,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 00:55:38,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:38,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 689 [2020-09-25 00:55:38,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:38,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 00:55:38,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:38,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 00:55:38,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:38,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:38,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:38,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:38,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 00:55:38,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:38,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 558 [2020-09-25 00:55:38,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:38,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 00:55:38,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:38,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 00:55:38,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:38,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:38,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:39,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:39,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 00:55:39,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:39,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-09-25 00:55:39,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:39,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:55:39,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:39,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 00:55:39,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:39,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:39,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:39,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:39,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:55:39,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:39,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-09-25 00:55:39,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:39,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 00:55:39,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:39,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 00:55:39,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:39,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:39,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:40,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:40,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:55:40,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:40,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-09-25 00:55:40,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:40,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:55:40,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:40,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:55:40,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:40,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:40,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:40,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:40,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:40,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:40,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-25 00:55:40,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:40,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:55:40,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:40,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:55:40,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:40,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:40,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:40,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:40,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:40,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:40,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-25 00:55:40,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:40,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:40,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:40,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:55:40,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:40,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:40,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:40,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:40,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:40,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:40,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 00:55:40,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:40,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:40,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:40,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:55:40,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:40,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:40,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:40,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:40,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:40,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:40,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 00:55:40,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:40,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:40,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:55:40,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:40,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:40,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:40,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:40,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:40,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:41,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 00:55:41,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:41,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:41,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:41,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:55:41,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:41,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:41,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:41,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:41,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:41,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:41,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 00:55:41,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:41,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:55:41,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:41,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:41,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:41,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:41,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:41,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:41,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:55:41,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:41,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 44 proven. 460 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2020-09-25 00:55:41,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1171300370] [2020-09-25 00:55:41,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:41,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 00:55:41,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940745747] [2020-09-25 00:55:41,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 00:55:41,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:41,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 00:55:41,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342 [2020-09-25 00:55:41,192 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 19 states. [2020-09-25 00:55:41,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:41,478 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-09-25 00:55:41,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 00:55:41,479 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 120 [2020-09-25 00:55:41,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:41,481 INFO L225 Difference]: With dead ends: 94 [2020-09-25 00:55:41,481 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 00:55:41,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=379, Invalid=677, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 00:55:41,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 00:55:41,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-09-25 00:55:41,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-25 00:55:41,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 89 transitions. [2020-09-25 00:55:41,488 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 89 transitions. Word has length 120 [2020-09-25 00:55:41,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:41,489 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 89 transitions. [2020-09-25 00:55:41,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 00:55:41,489 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 89 transitions. [2020-09-25 00:55:41,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-25 00:55:41,491 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:41,491 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:41,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 00:55:41,491 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:41,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:41,492 INFO L82 PathProgramCache]: Analyzing trace with hash 996432753, now seen corresponding path program 14 times [2020-09-25 00:55:41,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:41,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121495307] [2020-09-25 00:55:41,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:41,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:42,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:42,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 00:55:42,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:42,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 996 [2020-09-25 00:55:42,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 00:55:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 00:55:42,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:42,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:42,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:42,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:42,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:42,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:42,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:42,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:42,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:42,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:42,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:42,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:42,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:42,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:42,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:43,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:43,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 00:55:43,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:43,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 984 [2020-09-25 00:55:43,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:43,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 00:55:43,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:43,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 00:55:43,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:43,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:43,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:44,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:44,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 00:55:44,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:44,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 889 [2020-09-25 00:55:44,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 00:55:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 00:55:44,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:44,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:44,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:45,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:45,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 00:55:45,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:45,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 845 [2020-09-25 00:55:45,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:45,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 00:55:45,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:45,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 00:55:45,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:45,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:45,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:46,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:46,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 00:55:46,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:46,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 611 [2020-09-25 00:55:46,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:46,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 00:55:46,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:46,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 00:55:46,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:46,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:46,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:46,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:46,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 00:55:46,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:46,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 573 [2020-09-25 00:55:46,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:46,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 00:55:46,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:46,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 00:55:46,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:46,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:46,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:47,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:47,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 00:55:47,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:47,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-09-25 00:55:47,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:47,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:55:47,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:47,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 00:55:47,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:47,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:47,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:47,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:47,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:55:47,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:47,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-09-25 00:55:47,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:47,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 00:55:47,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:47,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 00:55:47,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:47,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:47,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:47,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:47,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:55:47,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:47,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-25 00:55:47,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:47,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:55:47,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:47,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:55:47,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:47,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:47,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:48,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:48,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:48,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:48,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 00:55:48,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:48,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:55:48,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:48,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:55:48,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:48,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:48,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:48,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:48,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:48,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:48,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-25 00:55:48,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:48,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:48,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:55:48,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:48,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:48,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:48,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:48,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:48,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:48,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 00:55:48,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:55:48,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:48,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:48,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:48,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:48,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:48,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:48,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 00:55:48,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:48,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:48,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:55:48,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:48,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:48,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:48,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:48,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:48,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:48,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 00:55:48,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:48,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:48,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:48,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:55:48,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:48,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:48,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:48,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:48,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:48,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:48,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 00:55:48,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:48,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:48,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:48,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:55:48,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:48,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:48,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:48,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:48,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:48,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:48,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:55:48,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:48,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:48,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:48,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:48,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:49,037 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 31 proven. 549 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-09-25 00:55:49,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121495307] [2020-09-25 00:55:49,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:49,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-25 00:55:49,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106353532] [2020-09-25 00:55:49,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-25 00:55:49,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:49,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-25 00:55:49,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=271, Unknown=0, NotChecked=0, Total=420 [2020-09-25 00:55:49,040 INFO L87 Difference]: Start difference. First operand 88 states and 89 transitions. Second operand 21 states. [2020-09-25 00:55:49,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:49,326 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2020-09-25 00:55:49,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 00:55:49,330 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 128 [2020-09-25 00:55:49,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:49,332 INFO L225 Difference]: With dead ends: 99 [2020-09-25 00:55:49,332 INFO L226 Difference]: Without dead ends: 93 [2020-09-25 00:55:49,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=449, Invalid=811, Unknown=0, NotChecked=0, Total=1260 [2020-09-25 00:55:49,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-25 00:55:49,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-09-25 00:55:49,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 00:55:49,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2020-09-25 00:55:49,348 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 128 [2020-09-25 00:55:49,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:49,349 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2020-09-25 00:55:49,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-25 00:55:49,349 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2020-09-25 00:55:49,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 00:55:49,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:49,353 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:49,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 00:55:49,354 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:49,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:49,354 INFO L82 PathProgramCache]: Analyzing trace with hash 418248103, now seen corresponding path program 15 times [2020-09-25 00:55:49,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:49,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843966518] [2020-09-25 00:55:49,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:49,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:50,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:50,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 00:55:50,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:50,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1206 [2020-09-25 00:55:50,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:50,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 00:55:50,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:55:50,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 00:55:50,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:50,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:55:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:50,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:50,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:50,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:55:50,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:50,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:55:50,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:50,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:55:50,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:50,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:55:50,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:50,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:55:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:50,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:51,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:51,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-25 00:55:51,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:51,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1143 [2020-09-25 00:55:51,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:51,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 00:55:51,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:55:51,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-25 00:55:51,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:51,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:51,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:52,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:52,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 00:55:52,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:52,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1049 [2020-09-25 00:55:52,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:52,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-25 00:55:52,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:52,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-25 00:55:52,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:52,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:52,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:53,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:53,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 00:55:53,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:53,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 916 [2020-09-25 00:55:53,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:53,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 00:55:53,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:53,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 00:55:53,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:53,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:53,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:54,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:54,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 00:55:54,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:54,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 759 [2020-09-25 00:55:54,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:54,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 00:55:54,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:54,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 00:55:54,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:54,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:54,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:55,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:55,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 00:55:55,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:55,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 667 [2020-09-25 00:55:55,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:55,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 00:55:55,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:55,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 00:55:55,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:55,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:55,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:55,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:55,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 00:55:55,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:55,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 565 [2020-09-25 00:55:55,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:55,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 00:55:55,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:55,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 00:55:55,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:55,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:55,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:56,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:56,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 00:55:56,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:56,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-09-25 00:55:56,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:56,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 00:55:56,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:56,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 00:55:56,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:56,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:56,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:56,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:56,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 00:55:56,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:56,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-09-25 00:55:56,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:56,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 00:55:56,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:56,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 00:55:56,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:56,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:56,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:57,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:57,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:55:57,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:57,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-25 00:55:57,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:57,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 00:55:57,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:57,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:55:57,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:57,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:57,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:57,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:57,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 00:55:57,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:57,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-25 00:55:57,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:57,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 00:55:57,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:57,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 00:55:57,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:57,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:57,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:57,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:57,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 00:55:57,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:57,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-25 00:55:57,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:57,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:55:57,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:57,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 00:55:57,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:57,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:57,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:57,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:57,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:55:57,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:57,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 00:55:57,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:57,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:55:57,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 00:55:57,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:57,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:57,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:58,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:58,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:55:58,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:58,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 00:55:58,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:58,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:55:58,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:58,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 00:55:58,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:58,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:58,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:58,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:58,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 00:55:58,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:58,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 00:55:58,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:58,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:55:58,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:58,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:55:58,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:55:58,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:58,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:58,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:58,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:55:58,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:58,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 00:55:58,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:55:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:55:58,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:58,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:55:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:58,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:55:58,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:55:58,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:55:58,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:55:58,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:55:58,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:55:58,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:55:58,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:55:58,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:55:58,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:55:58,355 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 24 proven. 623 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-09-25 00:55:58,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843966518] [2020-09-25 00:55:58,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:55:58,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-25 00:55:58,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010735061] [2020-09-25 00:55:58,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-25 00:55:58,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:55:58,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-25 00:55:58,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=260, Unknown=0, NotChecked=0, Total=420 [2020-09-25 00:55:58,357 INFO L87 Difference]: Start difference. First operand 93 states and 94 transitions. Second operand 21 states. [2020-09-25 00:55:58,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:55:58,658 INFO L93 Difference]: Finished difference Result 104 states and 105 transitions. [2020-09-25 00:55:58,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 00:55:58,658 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 136 [2020-09-25 00:55:58,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:55:58,660 INFO L225 Difference]: With dead ends: 104 [2020-09-25 00:55:58,660 INFO L226 Difference]: Without dead ends: 98 [2020-09-25 00:55:58,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=480, Invalid=852, Unknown=0, NotChecked=0, Total=1332 [2020-09-25 00:55:58,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-25 00:55:58,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-09-25 00:55:58,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-25 00:55:58,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2020-09-25 00:55:58,667 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 136 [2020-09-25 00:55:58,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:55:58,668 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2020-09-25 00:55:58,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-25 00:55:58,668 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2020-09-25 00:55:58,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-25 00:55:58,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:55:58,669 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:55:58,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 00:55:58,670 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:55:58,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:55:58,670 INFO L82 PathProgramCache]: Analyzing trace with hash 2106505265, now seen corresponding path program 16 times [2020-09-25 00:55:58,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:55:58,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884327366] [2020-09-25 00:55:58,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:55:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:55:58,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:00,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:00,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-09-25 00:56:00,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:00,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1348 [2020-09-25 00:56:00,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-25 00:56:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:56:00,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 00:56:00,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:00,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:56:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:56:00,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:56:00,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:56:00,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:56:00,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:56:00,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:56:00,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:56:00,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:56:00,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:56:00,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:56:00,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:56:00,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:56:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat