/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-examples/standard_two_index_03.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 03:47:04,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 03:47:04,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 03:47:04,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 03:47:04,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 03:47:04,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 03:47:04,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 03:47:04,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 03:47:04,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 03:47:04,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 03:47:04,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 03:47:04,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 03:47:04,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 03:47:04,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 03:47:04,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 03:47:04,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 03:47:04,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 03:47:04,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 03:47:04,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 03:47:04,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 03:47:04,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 03:47:04,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 03:47:04,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 03:47:04,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 03:47:04,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 03:47:04,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 03:47:04,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 03:47:04,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 03:47:04,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 03:47:04,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 03:47:04,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 03:47:04,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 03:47:04,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 03:47:04,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 03:47:04,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 03:47:04,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 03:47:04,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 03:47:04,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 03:47:04,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 03:47:04,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 03:47:04,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 03:47:04,580 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 03:47:04,623 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 03:47:04,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 03:47:04,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 03:47:04,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 03:47:04,626 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 03:47:04,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 03:47:04,626 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 03:47:04,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 03:47:04,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 03:47:04,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 03:47:04,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 03:47:04,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 03:47:04,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 03:47:04,628 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 03:47:04,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 03:47:04,628 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 03:47:04,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 03:47:04,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 03:47:04,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 03:47:04,629 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 03:47:04,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 03:47:04,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 03:47:04,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 03:47:04,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 03:47:04,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 03:47:04,631 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 03:47:04,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 03:47:04,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 03:47:04,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 03:47:04,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 03:47:05,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 03:47:05,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 03:47:05,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 03:47:05,064 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 03:47:05,064 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 03:47:05,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_two_index_03.i [2020-10-29 03:47:05,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82361ed2f/9a4d59ca97c44b3e8b29681e21931f72/FLAG791fe0997 [2020-10-29 03:47:05,768 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 03:47:05,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/standard_two_index_03.i [2020-10-29 03:47:05,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82361ed2f/9a4d59ca97c44b3e8b29681e21931f72/FLAG791fe0997 [2020-10-29 03:47:06,139 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82361ed2f/9a4d59ca97c44b3e8b29681e21931f72 [2020-10-29 03:47:06,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 03:47:06,154 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 03:47:06,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 03:47:06,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 03:47:06,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 03:47:06,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:47:06" (1/1) ... [2020-10-29 03:47:06,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1791f688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:06, skipping insertion in model container [2020-10-29 03:47:06,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:47:06" (1/1) ... [2020-10-29 03:47:06,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 03:47:06,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 03:47:06,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:47:06,371 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 03:47:06,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:47:06,413 INFO L208 MainTranslator]: Completed translation [2020-10-29 03:47:06,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:06 WrapperNode [2020-10-29 03:47:06,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 03:47:06,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 03:47:06,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 03:47:06,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 03:47:06,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:06" (1/1) ... [2020-10-29 03:47:06,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:06" (1/1) ... [2020-10-29 03:47:06,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:06" (1/1) ... [2020-10-29 03:47:06,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:06" (1/1) ... [2020-10-29 03:47:06,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:06" (1/1) ... [2020-10-29 03:47:06,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:06" (1/1) ... [2020-10-29 03:47:06,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:06" (1/1) ... [2020-10-29 03:47:06,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 03:47:06,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 03:47:06,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 03:47:06,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 03:47:06,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 03:47:06,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 03:47:06,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 03:47:06,542 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 03:47:06,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 03:47:06,543 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 03:47:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 03:47:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 03:47:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 03:47:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 03:47:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 03:47:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 03:47:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 03:47:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 03:47:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 03:47:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 03:47:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 03:47:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 03:47:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 03:47:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 03:47:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 03:47:06,966 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 03:47:06,967 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-29 03:47:06,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:47:06 BoogieIcfgContainer [2020-10-29 03:47:06,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 03:47:06,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 03:47:06,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 03:47:06,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 03:47:06,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 03:47:06" (1/3) ... [2020-10-29 03:47:06,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0dad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:47:06, skipping insertion in model container [2020-10-29 03:47:06,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:06" (2/3) ... [2020-10-29 03:47:06,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0dad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:47:06, skipping insertion in model container [2020-10-29 03:47:06,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:47:06" (3/3) ... [2020-10-29 03:47:06,979 INFO L111 eAbstractionObserver]: Analyzing ICFG standard_two_index_03.i [2020-10-29 03:47:07,003 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 03:47:07,009 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 03:47:07,024 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 03:47:07,052 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 03:47:07,052 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 03:47:07,052 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 03:47:07,052 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 03:47:07,053 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 03:47:07,053 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 03:47:07,053 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 03:47:07,053 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 03:47:07,071 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-29 03:47:07,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-29 03:47:07,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:07,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:07,080 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:07,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:07,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1774182118, now seen corresponding path program 1 times [2020-10-29 03:47:07,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:07,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389170445] [2020-10-29 03:47:07,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:07,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:07,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:07,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:07,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 03:47:07,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:07,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-29 03:47:07,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:07,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 03:47:07,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 03:47:07,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:07,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:07,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:07,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:07,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:07,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 03:47:07,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:07,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:07,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:07,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:07,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:07,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:07,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:47:07,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389170445] [2020-10-29 03:47:07,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:47:07,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 03:47:07,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024588410] [2020-10-29 03:47:07,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 03:47:07,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:07,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 03:47:07,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 03:47:07,767 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 4 states. [2020-10-29 03:47:07,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:07,909 INFO L93 Difference]: Finished difference Result 49 states and 65 transitions. [2020-10-29 03:47:07,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 03:47:07,912 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-29 03:47:07,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:07,920 INFO L225 Difference]: With dead ends: 49 [2020-10-29 03:47:07,921 INFO L226 Difference]: Without dead ends: 22 [2020-10-29 03:47:07,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 03:47:07,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-29 03:47:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-29 03:47:07,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-29 03:47:07,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2020-10-29 03:47:07,969 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 17 [2020-10-29 03:47:07,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:07,969 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2020-10-29 03:47:07,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 03:47:07,970 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-10-29 03:47:07,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-29 03:47:07,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:07,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:07,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 03:47:07,971 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:07,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:07,972 INFO L82 PathProgramCache]: Analyzing trace with hash -577359468, now seen corresponding path program 1 times [2020-10-29 03:47:07,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:07,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338443893] [2020-10-29 03:47:07,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:08,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:08,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:08,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:08,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-29 03:47:08,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:08,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 345 [2020-10-29 03:47:08,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:08,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:08,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 03:47:08,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:08,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 03:47:08,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:08,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:08,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:08,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:08,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:08,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:08,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 03:47:08,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:08,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:08,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:08,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:08,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:08,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:08,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:47:08,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338443893] [2020-10-29 03:47:08,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:08,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 03:47:08,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400866280] [2020-10-29 03:47:08,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 03:47:08,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:08,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 03:47:08,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 03:47:08,446 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 5 states. [2020-10-29 03:47:08,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:08,610 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2020-10-29 03:47:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 03:47:08,612 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-29 03:47:08,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:08,614 INFO L225 Difference]: With dead ends: 41 [2020-10-29 03:47:08,614 INFO L226 Difference]: Without dead ends: 27 [2020-10-29 03:47:08,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 03:47:08,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-29 03:47:08,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2020-10-29 03:47:08,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-29 03:47:08,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2020-10-29 03:47:08,628 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 18 [2020-10-29 03:47:08,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:08,629 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2020-10-29 03:47:08,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 03:47:08,629 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2020-10-29 03:47:08,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-29 03:47:08,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:08,630 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:08,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 03:47:08,631 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:08,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:08,632 INFO L82 PathProgramCache]: Analyzing trace with hash -446889165, now seen corresponding path program 1 times [2020-10-29 03:47:08,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:08,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147739328] [2020-10-29 03:47:08,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:08,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:08,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:08,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:09,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:09,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 03:47:09,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:09,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 706 [2020-10-29 03:47:09,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:09,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 03:47:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 03:47:09,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:09,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:09,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:09,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:09,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:09,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:09,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 03:47:09,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:09,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:09,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:09,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:09,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:09,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:09,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 03:47:09,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147739328] [2020-10-29 03:47:09,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:09,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 03:47:09,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420231252] [2020-10-29 03:47:09,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 03:47:09,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:09,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 03:47:09,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-29 03:47:09,862 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 10 states. [2020-10-29 03:47:10,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:10,501 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2020-10-29 03:47:10,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 03:47:10,502 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-10-29 03:47:10,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:10,504 INFO L225 Difference]: With dead ends: 40 [2020-10-29 03:47:10,504 INFO L226 Difference]: Without dead ends: 36 [2020-10-29 03:47:10,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2020-10-29 03:47:10,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-29 03:47:10,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2020-10-29 03:47:10,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-29 03:47:10,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-10-29 03:47:10,515 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 20 [2020-10-29 03:47:10,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:10,515 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-10-29 03:47:10,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 03:47:10,515 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-10-29 03:47:10,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-29 03:47:10,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:10,516 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:10,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 03:47:10,517 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:10,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:10,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1420739774, now seen corresponding path program 2 times [2020-10-29 03:47:10,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:10,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034180235] [2020-10-29 03:47:10,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:10,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:10,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:10,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:11,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:11,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-29 03:47:11,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:11,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 675 [2020-10-29 03:47:11,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:11,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 03:47:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 03:47:11,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:11,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:11,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:11,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:11,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:11,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:11,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:47:11,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:11,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:11,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:11,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:11,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:11,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:11,529 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 03:47:11,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034180235] [2020-10-29 03:47:11,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:11,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 03:47:11,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671733560] [2020-10-29 03:47:11,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 03:47:11,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:11,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 03:47:11,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-29 03:47:11,533 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 11 states. [2020-10-29 03:47:11,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:11,962 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2020-10-29 03:47:11,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 03:47:11,963 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-29 03:47:11,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:11,967 INFO L225 Difference]: With dead ends: 48 [2020-10-29 03:47:11,967 INFO L226 Difference]: Without dead ends: 44 [2020-10-29 03:47:11,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-10-29 03:47:11,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-29 03:47:11,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 33. [2020-10-29 03:47:11,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-29 03:47:11,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-10-29 03:47:11,979 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 21 [2020-10-29 03:47:11,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:11,980 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-10-29 03:47:11,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 03:47:11,980 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-10-29 03:47:11,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-29 03:47:11,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:11,981 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:11,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 03:47:11,981 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:11,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:11,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1545337581, now seen corresponding path program 3 times [2020-10-29 03:47:11,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:11,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966138064] [2020-10-29 03:47:11,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:12,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:12,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:12,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:12,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:12,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 03:47:12,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:12,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 843 [2020-10-29 03:47:12,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:12,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:12,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 03:47:12,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:12,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 03:47:12,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:13,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:13,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:13,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:13,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:13,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:13,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:47:13,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:13,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:13,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:13,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:13,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:13,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:13,255 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 03:47:13,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966138064] [2020-10-29 03:47:13,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:13,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 03:47:13,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598388793] [2020-10-29 03:47:13,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 03:47:13,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:13,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 03:47:13,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:47:13,269 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 12 states. [2020-10-29 03:47:13,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:13,743 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2020-10-29 03:47:13,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 03:47:13,743 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-29 03:47:13,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:13,746 INFO L225 Difference]: With dead ends: 53 [2020-10-29 03:47:13,746 INFO L226 Difference]: Without dead ends: 49 [2020-10-29 03:47:13,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-10-29 03:47:13,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-29 03:47:13,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 34. [2020-10-29 03:47:13,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-29 03:47:13,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2020-10-29 03:47:13,765 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 22 [2020-10-29 03:47:13,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:13,765 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2020-10-29 03:47:13,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 03:47:13,765 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2020-10-29 03:47:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-29 03:47:13,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:13,768 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:13,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 03:47:13,768 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:13,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:13,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1112902302, now seen corresponding path program 4 times [2020-10-29 03:47:13,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:13,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598008327] [2020-10-29 03:47:13,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:13,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:13,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:13,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:14,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:14,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 03:47:14,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:14,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 944 [2020-10-29 03:47:14,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:14,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:14,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 03:47:14,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:14,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 03:47:14,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:15,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:15,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:15,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:15,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:15,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:15,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 03:47:15,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:15,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:15,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:15,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:15,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:15,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:15,103 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 03:47:15,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598008327] [2020-10-29 03:47:15,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:15,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 03:47:15,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869942153] [2020-10-29 03:47:15,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 03:47:15,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:15,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 03:47:15,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-29 03:47:15,107 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 13 states. [2020-10-29 03:47:15,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:15,569 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2020-10-29 03:47:15,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 03:47:15,571 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2020-10-29 03:47:15,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:15,572 INFO L225 Difference]: With dead ends: 49 [2020-10-29 03:47:15,572 INFO L226 Difference]: Without dead ends: 45 [2020-10-29 03:47:15,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:47:15,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-29 03:47:15,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 30. [2020-10-29 03:47:15,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-29 03:47:15,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-10-29 03:47:15,588 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 23 [2020-10-29 03:47:15,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:15,588 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-10-29 03:47:15,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 03:47:15,589 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-10-29 03:47:15,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-29 03:47:15,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:15,591 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:15,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 03:47:15,591 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:15,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:15,592 INFO L82 PathProgramCache]: Analyzing trace with hash 791061505, now seen corresponding path program 1 times [2020-10-29 03:47:15,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:15,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893477353] [2020-10-29 03:47:15,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:15,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:15,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:15,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:15,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-29 03:47:15,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:15,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-29 03:47:15,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:15,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:15,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 03:47:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 03:47:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 03:47:15,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:15,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:15,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:15,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:15,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:15,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:15,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:47:15,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:15,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:15,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:15,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:15,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:15,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:15,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-29 03:47:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:15,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:15,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:15,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:15,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:15,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:15,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:15,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:15,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:15,947 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 03:47:15,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893477353] [2020-10-29 03:47:15,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:15,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 03:47:15,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489294801] [2020-10-29 03:47:15,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 03:47:15,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:15,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 03:47:15,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 03:47:15,951 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 5 states. [2020-10-29 03:47:16,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:16,045 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2020-10-29 03:47:16,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 03:47:16,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-29 03:47:16,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:16,047 INFO L225 Difference]: With dead ends: 53 [2020-10-29 03:47:16,047 INFO L226 Difference]: Without dead ends: 35 [2020-10-29 03:47:16,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 03:47:16,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-29 03:47:16,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2020-10-29 03:47:16,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-29 03:47:16,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2020-10-29 03:47:16,057 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 27 [2020-10-29 03:47:16,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:16,057 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2020-10-29 03:47:16,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 03:47:16,057 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-10-29 03:47:16,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-29 03:47:16,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:16,058 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:16,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 03:47:16,059 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:16,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:16,059 INFO L82 PathProgramCache]: Analyzing trace with hash -424342254, now seen corresponding path program 2 times [2020-10-29 03:47:16,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:16,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082797460] [2020-10-29 03:47:16,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:16,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:16,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:16,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:16,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:16,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 03:47:16,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:16,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 850 [2020-10-29 03:47:16,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:16,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:16,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 03:47:16,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:16,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 03:47:16,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:17,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:17,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:17,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:17,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:17,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:17,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:17,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:17,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:17,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:17,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 03:47:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:17,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:17,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:17,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:17,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:17,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:47:17,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:17,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:17,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:17,238 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 03:47:17,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082797460] [2020-10-29 03:47:17,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:17,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 03:47:17,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159420377] [2020-10-29 03:47:17,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 03:47:17,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:17,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 03:47:17,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:47:17,240 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 12 states. [2020-10-29 03:47:17,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:17,612 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2020-10-29 03:47:17,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 03:47:17,613 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 28 [2020-10-29 03:47:17,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:17,614 INFO L225 Difference]: With dead ends: 50 [2020-10-29 03:47:17,614 INFO L226 Difference]: Without dead ends: 46 [2020-10-29 03:47:17,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:47:17,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-29 03:47:17,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-29 03:47:17,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-29 03:47:17,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-10-29 03:47:17,626 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 28 [2020-10-29 03:47:17,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:17,627 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-10-29 03:47:17,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 03:47:17,627 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-10-29 03:47:17,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-29 03:47:17,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:17,629 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:17,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 03:47:17,629 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:17,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:17,630 INFO L82 PathProgramCache]: Analyzing trace with hash 552846881, now seen corresponding path program 3 times [2020-10-29 03:47:17,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:17,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623643132] [2020-10-29 03:47:17,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:17,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:17,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:17,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:18,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:18,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 03:47:18,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:18,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 931 [2020-10-29 03:47:18,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:18,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 03:47:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 03:47:18,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:18,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:18,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:18,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:18,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:18,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:47:18,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:18,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:18,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:18,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:18,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:18,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 03:47:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:18,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:18,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:18,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:18,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:18,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:18,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:18,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:18,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:18,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:18,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:18,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 03:47:18,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [623643132] [2020-10-29 03:47:18,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:18,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 03:47:18,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740450239] [2020-10-29 03:47:18,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 03:47:18,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:18,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 03:47:18,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-29 03:47:18,821 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 13 states. [2020-10-29 03:47:19,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:19,355 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2020-10-29 03:47:19,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 03:47:19,356 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 29 [2020-10-29 03:47:19,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:19,357 INFO L225 Difference]: With dead ends: 64 [2020-10-29 03:47:19,358 INFO L226 Difference]: Without dead ends: 60 [2020-10-29 03:47:19,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2020-10-29 03:47:19,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-29 03:47:19,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 43. [2020-10-29 03:47:19,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-29 03:47:19,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2020-10-29 03:47:19,378 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 29 [2020-10-29 03:47:19,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:19,378 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2020-10-29 03:47:19,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 03:47:19,378 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2020-10-29 03:47:19,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-29 03:47:19,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:19,380 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:19,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 03:47:19,380 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:19,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:19,381 INFO L82 PathProgramCache]: Analyzing trace with hash 780938994, now seen corresponding path program 4 times [2020-10-29 03:47:19,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:19,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810592292] [2020-10-29 03:47:19,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:19,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:19,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:19,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:20,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:20,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 03:47:20,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:20,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1095 [2020-10-29 03:47:20,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:20,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:20,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 03:47:20,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:20,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 03:47:20,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 03:47:20,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:20,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:20,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:20,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:20,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:20,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:47:20,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:20,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:20,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:20,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:20,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:20,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:20,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 03:47:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:20,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:20,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:20,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:20,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:20,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:20,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:20,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:20,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:20,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:20,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:20,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 03:47:20,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1810592292] [2020-10-29 03:47:20,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:20,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 03:47:20,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348948193] [2020-10-29 03:47:20,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 03:47:20,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:20,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 03:47:20,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:47:20,757 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 14 states. [2020-10-29 03:47:21,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:21,256 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2020-10-29 03:47:21,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 03:47:21,257 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 30 [2020-10-29 03:47:21,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:21,258 INFO L225 Difference]: With dead ends: 55 [2020-10-29 03:47:21,258 INFO L226 Difference]: Without dead ends: 51 [2020-10-29 03:47:21,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2020-10-29 03:47:21,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-29 03:47:21,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 38. [2020-10-29 03:47:21,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-29 03:47:21,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2020-10-29 03:47:21,276 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 30 [2020-10-29 03:47:21,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:21,277 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2020-10-29 03:47:21,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 03:47:21,277 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2020-10-29 03:47:21,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-29 03:47:21,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:21,280 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:21,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 03:47:21,280 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:21,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:21,282 INFO L82 PathProgramCache]: Analyzing trace with hash -494366398, now seen corresponding path program 5 times [2020-10-29 03:47:21,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:21,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227896177] [2020-10-29 03:47:21,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:21,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:21,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:21,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:21,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 03:47:21,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:21,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-29 03:47:21,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:21,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:21,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 03:47:21,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:21,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 03:47:21,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:21,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:21,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:21,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:21,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:21,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:21,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:21,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:21,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:21,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:21,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:21,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:21,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:21,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 03:47:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:21,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:21,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:21,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:21,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:21,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:21,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:21,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:21,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:21,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:21,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:21,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:21,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 03:47:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:21,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:21,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:21,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:21,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:21,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:21,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:21,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:21,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:21,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:21,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:21,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:21,761 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 03:47:21,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227896177] [2020-10-29 03:47:21,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:21,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 03:47:21,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282242542] [2020-10-29 03:47:21,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 03:47:21,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:21,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 03:47:21,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 03:47:21,765 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 6 states. [2020-10-29 03:47:21,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:21,852 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2020-10-29 03:47:21,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 03:47:21,853 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-10-29 03:47:21,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:21,854 INFO L225 Difference]: With dead ends: 68 [2020-10-29 03:47:21,854 INFO L226 Difference]: Without dead ends: 39 [2020-10-29 03:47:21,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 03:47:21,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-29 03:47:21,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-29 03:47:21,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-29 03:47:21,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-10-29 03:47:21,870 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 35 [2020-10-29 03:47:21,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:21,870 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-10-29 03:47:21,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 03:47:21,870 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-10-29 03:47:21,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-29 03:47:21,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:21,873 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:21,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 03:47:21,873 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:21,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:21,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1891559564, now seen corresponding path program 6 times [2020-10-29 03:47:21,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:21,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [698715611] [2020-10-29 03:47:21,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:21,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:21,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:22,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:22,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 03:47:22,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:22,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 440 [2020-10-29 03:47:22,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:22,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:22,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 03:47:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 03:47:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 03:47:22,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:22,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:22,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:22,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:22,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:22,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:22,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:22,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:22,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:22,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:22,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 03:47:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:22,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:22,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:22,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:22,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:22,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:22,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:22,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:22,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:22,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 03:47:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:22,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:22,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:22,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:22,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:22,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:22,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:22,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:22,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:22,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:22,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:22,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:22,404 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-29 03:47:22,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [698715611] [2020-10-29 03:47:22,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:22,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 03:47:22,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319850977] [2020-10-29 03:47:22,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 03:47:22,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:22,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 03:47:22,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 03:47:22,407 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 6 states. [2020-10-29 03:47:22,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:22,508 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2020-10-29 03:47:22,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 03:47:22,509 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-10-29 03:47:22,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:22,509 INFO L225 Difference]: With dead ends: 69 [2020-10-29 03:47:22,510 INFO L226 Difference]: Without dead ends: 44 [2020-10-29 03:47:22,510 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 03:47:22,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-29 03:47:22,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-10-29 03:47:22,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-29 03:47:22,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2020-10-29 03:47:22,526 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 36 [2020-10-29 03:47:22,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:22,528 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2020-10-29 03:47:22,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 03:47:22,529 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2020-10-29 03:47:22,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-29 03:47:22,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:22,532 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:22,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 03:47:22,533 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:22,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:22,533 INFO L82 PathProgramCache]: Analyzing trace with hash 8493409, now seen corresponding path program 7 times [2020-10-29 03:47:22,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:22,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601135485] [2020-10-29 03:47:22,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:22,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:22,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:22,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:23,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:23,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-29 03:47:23,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:23,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1322 [2020-10-29 03:47:23,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:23,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:23,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 03:47:23,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:23,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 03:47:23,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:24,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:24,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:24,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:24,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:24,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:24,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:47:24,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:24,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:24,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:24,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:24,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:24,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:24,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 03:47:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:24,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:24,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:24,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:24,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:24,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:24,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:24,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:24,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:24,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:24,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:24,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:24,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 03:47:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:24,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:24,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:24,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:24,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:24,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:47:24,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:24,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:24,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:24,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:24,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:24,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:24,148 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-29 03:47:24,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1601135485] [2020-10-29 03:47:24,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:24,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 03:47:24,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645075991] [2020-10-29 03:47:24,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 03:47:24,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:24,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 03:47:24,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:47:24,151 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand 14 states. [2020-10-29 03:47:24,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:24,653 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2020-10-29 03:47:24,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 03:47:24,654 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2020-10-29 03:47:24,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:24,655 INFO L225 Difference]: With dead ends: 62 [2020-10-29 03:47:24,656 INFO L226 Difference]: Without dead ends: 58 [2020-10-29 03:47:24,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2020-10-29 03:47:24,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-29 03:47:24,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-29 03:47:24,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-29 03:47:24,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2020-10-29 03:47:24,687 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 37 [2020-10-29 03:47:24,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:24,687 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2020-10-29 03:47:24,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 03:47:24,687 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2020-10-29 03:47:24,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-29 03:47:24,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:24,689 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:24,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 03:47:24,689 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:24,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:24,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1219406572, now seen corresponding path program 8 times [2020-10-29 03:47:24,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:24,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303084883] [2020-10-29 03:47:24,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:24,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:24,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:24,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:26,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:26,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-29 03:47:26,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:26,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1567 [2020-10-29 03:47:26,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:26,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:26,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 03:47:26,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:26,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 03:47:26,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:26,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:26,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:26,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:26,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:26,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:26,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:26,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:26,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:26,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:26,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:26,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:26,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:26,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 03:47:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:26,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:26,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:26,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:26,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:26,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:26,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:26,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:26,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:26,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:26,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:26,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:47:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:26,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:26,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:26,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:26,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:26,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:26,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:26,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:26,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:26,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:26,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:26,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-29 03:47:26,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303084883] [2020-10-29 03:47:26,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:26,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 03:47:26,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328779119] [2020-10-29 03:47:26,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 03:47:26,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:26,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 03:47:26,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-10-29 03:47:26,546 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 15 states. [2020-10-29 03:47:27,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:27,092 INFO L93 Difference]: Finished difference Result 79 states and 89 transitions. [2020-10-29 03:47:27,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 03:47:27,092 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 38 [2020-10-29 03:47:27,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:27,094 INFO L225 Difference]: With dead ends: 79 [2020-10-29 03:47:27,094 INFO L226 Difference]: Without dead ends: 75 [2020-10-29 03:47:27,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2020-10-29 03:47:27,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-29 03:47:27,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 55. [2020-10-29 03:47:27,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-29 03:47:27,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2020-10-29 03:47:27,109 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 38 [2020-10-29 03:47:27,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:27,109 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2020-10-29 03:47:27,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 03:47:27,109 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2020-10-29 03:47:27,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-29 03:47:27,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:27,110 INFO L422 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:27,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 03:47:27,111 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:27,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:27,111 INFO L82 PathProgramCache]: Analyzing trace with hash -629600319, now seen corresponding path program 9 times [2020-10-29 03:47:27,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:27,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234667097] [2020-10-29 03:47:27,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:27,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:27,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:27,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:28,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:28,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-29 03:47:28,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:28,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1531 [2020-10-29 03:47:28,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:28,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:28,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 03:47:28,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 03:47:28,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:28,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:28,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:28,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:28,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:28,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:28,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:28,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:28,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:28,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:28,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:28,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:28,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 03:47:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:28,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:28,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:28,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:28,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:28,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:28,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:28,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:28,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:28,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:28,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:28,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:28,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 03:47:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:28,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:28,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:28,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:28,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:28,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 03:47:28,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:28,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:28,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:28,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:28,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:28,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:28,981 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-29 03:47:28,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234667097] [2020-10-29 03:47:28,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:28,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 03:47:28,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524917156] [2020-10-29 03:47:28,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 03:47:28,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:28,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 03:47:28,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2020-10-29 03:47:28,984 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand 16 states. [2020-10-29 03:47:29,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:29,577 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2020-10-29 03:47:29,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 03:47:29,577 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 39 [2020-10-29 03:47:29,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:29,578 INFO L225 Difference]: With dead ends: 67 [2020-10-29 03:47:29,578 INFO L226 Difference]: Without dead ends: 63 [2020-10-29 03:47:29,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2020-10-29 03:47:29,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-29 03:47:29,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 47. [2020-10-29 03:47:29,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-29 03:47:29,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-10-29 03:47:29,598 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 39 [2020-10-29 03:47:29,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:29,598 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-10-29 03:47:29,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 03:47:29,598 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-10-29 03:47:29,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-29 03:47:29,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:29,599 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:29,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 03:47:29,599 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:29,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:29,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1639752173, now seen corresponding path program 10 times [2020-10-29 03:47:29,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:29,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208649183] [2020-10-29 03:47:29,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:29,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:29,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:30,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:30,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-29 03:47:30,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:30,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-10-29 03:47:30,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:30,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:30,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 03:47:30,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:30,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 03:47:30,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:30,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:30,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:30,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:30,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:30,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:30,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:30,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:30,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:30,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:30,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:30,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:30,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:30,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 03:47:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:30,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:30,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:30,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:30,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:30,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:30,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:30,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:30,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:30,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:30,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:30,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:30,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 03:47:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:30,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:30,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:30,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:30,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:30,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:30,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:30,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:30,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:30,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:30,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:30,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:47:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:30,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:30,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:30,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:30,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:30,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:30,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:30,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:30,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:30,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:30,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:30,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:30,283 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-29 03:47:30,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208649183] [2020-10-29 03:47:30,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:30,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 03:47:30,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425726169] [2020-10-29 03:47:30,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 03:47:30,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:30,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 03:47:30,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 03:47:30,288 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 7 states. [2020-10-29 03:47:30,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:30,389 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2020-10-29 03:47:30,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 03:47:30,390 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2020-10-29 03:47:30,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:30,391 INFO L225 Difference]: With dead ends: 85 [2020-10-29 03:47:30,391 INFO L226 Difference]: Without dead ends: 48 [2020-10-29 03:47:30,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 03:47:30,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-29 03:47:30,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-29 03:47:30,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-29 03:47:30,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2020-10-29 03:47:30,406 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 44 [2020-10-29 03:47:30,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:30,406 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2020-10-29 03:47:30,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 03:47:30,407 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2020-10-29 03:47:30,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-29 03:47:30,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:30,407 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:30,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 03:47:30,408 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:30,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:30,409 INFO L82 PathProgramCache]: Analyzing trace with hash -400969695, now seen corresponding path program 11 times [2020-10-29 03:47:30,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:30,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491051865] [2020-10-29 03:47:30,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:30,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:30,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:31,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:31,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-29 03:47:31,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:31,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 664 [2020-10-29 03:47:31,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:31,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:31,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 03:47:31,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 03:47:31,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 03:47:31,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:31,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:31,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:31,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:31,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:31,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:31,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:31,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:31,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:31,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:31,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:31,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:31,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:31,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 03:47:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:31,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:31,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:31,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:31,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:31,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:31,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:31,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:31,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:31,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:31,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:31,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:31,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:47:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:31,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:31,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:31,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:31,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:31,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:31,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:31,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:31,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:31,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 03:47:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:31,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:31,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:31,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:31,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:31,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:31,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:31,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:31,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:31,176 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-10-29 03:47:31,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491051865] [2020-10-29 03:47:31,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:31,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 03:47:31,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421923945] [2020-10-29 03:47:31,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 03:47:31,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:31,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 03:47:31,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 03:47:31,179 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand 7 states. [2020-10-29 03:47:31,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:31,305 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2020-10-29 03:47:31,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 03:47:31,305 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-10-29 03:47:31,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:31,306 INFO L225 Difference]: With dead ends: 85 [2020-10-29 03:47:31,307 INFO L226 Difference]: Without dead ends: 53 [2020-10-29 03:47:31,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 03:47:31,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-29 03:47:31,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2020-10-29 03:47:31,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-29 03:47:31,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2020-10-29 03:47:31,324 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 45 [2020-10-29 03:47:31,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:31,324 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2020-10-29 03:47:31,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 03:47:31,325 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2020-10-29 03:47:31,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-29 03:47:31,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:31,325 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:31,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 03:47:31,326 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:31,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:31,326 INFO L82 PathProgramCache]: Analyzing trace with hash 2143392434, now seen corresponding path program 12 times [2020-10-29 03:47:31,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:31,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946032126] [2020-10-29 03:47:31,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:31,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:31,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:31,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:32,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:32,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-29 03:47:32,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:32,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1564 [2020-10-29 03:47:32,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:32,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:32,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 03:47:32,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:32,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 03:47:32,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:33,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:33,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:33,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:33,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:33,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:33,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:33,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:33,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:33,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:33,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:33,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:33,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:33,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 03:47:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:33,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:33,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:33,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:33,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:33,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:33,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:33,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:33,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:33,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 03:47:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:33,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:33,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:33,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:33,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:33,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:33,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:33,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:33,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:33,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:33,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:47:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:33,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:33,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:33,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:33,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:33,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:33,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:33,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:33,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:33,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:33,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:33,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:33,240 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-29 03:47:33,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946032126] [2020-10-29 03:47:33,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:33,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 03:47:33,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034487107] [2020-10-29 03:47:33,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 03:47:33,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:33,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 03:47:33,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-10-29 03:47:33,244 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 16 states. [2020-10-29 03:47:33,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:33,812 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2020-10-29 03:47:33,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 03:47:33,813 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 46 [2020-10-29 03:47:33,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:33,815 INFO L225 Difference]: With dead ends: 74 [2020-10-29 03:47:33,815 INFO L226 Difference]: Without dead ends: 70 [2020-10-29 03:47:33,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2020-10-29 03:47:33,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-29 03:47:33,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2020-10-29 03:47:33,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-29 03:47:33,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2020-10-29 03:47:33,838 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 46 [2020-10-29 03:47:33,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:33,839 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2020-10-29 03:47:33,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 03:47:33,839 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2020-10-29 03:47:33,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-29 03:47:33,840 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:33,840 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:33,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 03:47:33,841 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:33,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:33,841 INFO L82 PathProgramCache]: Analyzing trace with hash -585760191, now seen corresponding path program 13 times [2020-10-29 03:47:33,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:33,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1975691724] [2020-10-29 03:47:33,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:33,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:33,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:34,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:35,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:35,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-29 03:47:35,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:35,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1563 [2020-10-29 03:47:35,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:35,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 03:47:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:35,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 03:47:35,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:35,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:35,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:35,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:35,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:35,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:35,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:35,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:35,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:35,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:35,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:35,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 03:47:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:35,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:35,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:35,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:35,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:35,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:35,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:35,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:35,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:35,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:35,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:35,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:35,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:47:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:35,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:35,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:35,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:35,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:35,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:35,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:35,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:35,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:35,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:35,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:35,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 03:47:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:35,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:35,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:35,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:35,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:35,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:35,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:35,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:35,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:35,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:35,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:35,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:35,755 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-29 03:47:35,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1975691724] [2020-10-29 03:47:35,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:35,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 03:47:35,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549678168] [2020-10-29 03:47:35,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 03:47:35,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:35,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 03:47:35,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2020-10-29 03:47:35,757 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand 17 states. [2020-10-29 03:47:36,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:36,647 INFO L93 Difference]: Finished difference Result 95 states and 107 transitions. [2020-10-29 03:47:36,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 03:47:36,649 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 47 [2020-10-29 03:47:36,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:36,653 INFO L225 Difference]: With dead ends: 95 [2020-10-29 03:47:36,653 INFO L226 Difference]: Without dead ends: 91 [2020-10-29 03:47:36,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2020-10-29 03:47:36,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-29 03:47:36,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 67. [2020-10-29 03:47:36,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-29 03:47:36,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2020-10-29 03:47:36,680 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 47 [2020-10-29 03:47:36,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:36,681 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2020-10-29 03:47:36,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 03:47:36,681 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2020-10-29 03:47:36,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-29 03:47:36,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:36,682 INFO L422 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:36,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 03:47:36,682 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:36,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:36,683 INFO L82 PathProgramCache]: Analyzing trace with hash 709854354, now seen corresponding path program 14 times [2020-10-29 03:47:36,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:36,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250995006] [2020-10-29 03:47:36,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:36,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:36,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:37,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:38,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:38,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-29 03:47:38,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:38,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2119 [2020-10-29 03:47:38,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:38,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 03:47:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:38,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-29 03:47:38,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:39,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:39,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:39,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:39,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:39,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:39,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:39,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:39,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:39,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:39,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:39,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:39,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:39,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 03:47:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:39,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:39,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:39,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:39,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:39,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:39,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:39,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:39,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:39,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:39,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:39,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:39,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 03:47:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:39,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:39,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:39,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:39,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:39,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:39,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:39,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:39,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:39,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:39,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:39,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:39,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:47:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:39,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:39,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:39,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:39,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:39,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:39,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:39,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:39,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:39,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:39,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:39,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:39,222 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-29 03:47:39,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250995006] [2020-10-29 03:47:39,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:39,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 03:47:39,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325857982] [2020-10-29 03:47:39,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 03:47:39,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:39,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 03:47:39,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:47:39,224 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand 18 states. [2020-10-29 03:47:40,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:40,016 INFO L93 Difference]: Finished difference Result 79 states and 86 transitions. [2020-10-29 03:47:40,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 03:47:40,020 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 48 [2020-10-29 03:47:40,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:40,021 INFO L225 Difference]: With dead ends: 79 [2020-10-29 03:47:40,022 INFO L226 Difference]: Without dead ends: 75 [2020-10-29 03:47:40,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2020-10-29 03:47:40,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-29 03:47:40,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 56. [2020-10-29 03:47:40,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-29 03:47:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2020-10-29 03:47:40,032 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 48 [2020-10-29 03:47:40,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:40,033 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2020-10-29 03:47:40,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 03:47:40,033 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2020-10-29 03:47:40,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-29 03:47:40,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:40,034 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:40,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 03:47:40,034 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:40,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:40,034 INFO L82 PathProgramCache]: Analyzing trace with hash 755529634, now seen corresponding path program 15 times [2020-10-29 03:47:40,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:40,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [952637896] [2020-10-29 03:47:40,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:40,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:40,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:40,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:40,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 03:47:40,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:40,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 820 [2020-10-29 03:47:40,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:40,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:40,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 03:47:40,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 03:47:40,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:40,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:40,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:40,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:40,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:40,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:40,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:40,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:40,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:40,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:40,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:40,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:40,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:40,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:40,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 03:47:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:40,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:40,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:40,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:40,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:40,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:40,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:40,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:40,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:40,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:40,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:40,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:40,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 03:47:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:40,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:40,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:40,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:40,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:40,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:40,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:40,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:40,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:40,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:40,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:40,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:47:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:40,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:40,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:40,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:40,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:40,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:47:40,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:40,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:40,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:40,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:40,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:40,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:40,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 03:47:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:40,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:40,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:40,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:40,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:40,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:40,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:40,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:40,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:40,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:40,972 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 03:47:40,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [952637896] [2020-10-29 03:47:40,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:40,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 03:47:40,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102354404] [2020-10-29 03:47:40,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 03:47:40,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:40,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 03:47:40,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 03:47:40,975 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand 8 states. [2020-10-29 03:47:41,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:41,148 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2020-10-29 03:47:41,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 03:47:41,148 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-10-29 03:47:41,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:41,149 INFO L225 Difference]: With dead ends: 107 [2020-10-29 03:47:41,149 INFO L226 Difference]: Without dead ends: 62 [2020-10-29 03:47:41,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 03:47:41,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-29 03:47:41,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-10-29 03:47:41,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-29 03:47:41,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-10-29 03:47:41,161 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 53 [2020-10-29 03:47:41,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:41,161 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-10-29 03:47:41,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 03:47:41,161 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-10-29 03:47:41,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-29 03:47:41,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:41,162 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:41,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 03:47:41,162 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:41,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:41,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1854591425, now seen corresponding path program 16 times [2020-10-29 03:47:41,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:41,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127745458] [2020-10-29 03:47:41,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:41,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:41,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:42,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:43,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:43,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 03:47:43,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:43,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1899 [2020-10-29 03:47:43,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:43,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:43,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 03:47:43,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:43,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 03:47:43,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:43,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:43,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:43,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:43,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:43,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:43,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:43,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:43,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:43,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:43,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:43,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:43,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:43,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 03:47:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:43,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:43,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:43,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:43,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:43,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:43,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:43,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:43,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:43,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 03:47:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:43,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:43,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:43,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:43,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:43,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:43,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:43,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:43,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:43,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:43,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:43,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:43,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:47:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:43,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:43,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:43,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:43,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:43,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:43,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:43,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:43,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:43,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:43,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:43,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:43,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 03:47:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:43,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:43,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:43,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:43,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:43,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:43,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:43,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:43,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:43,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:43,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:43,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:43,484 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 8 proven. 41 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-29 03:47:43,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127745458] [2020-10-29 03:47:43,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:43,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 03:47:43,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199533770] [2020-10-29 03:47:43,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 03:47:43,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:43,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 03:47:43,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:47:43,489 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 18 states. [2020-10-29 03:47:44,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:44,213 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2020-10-29 03:47:44,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 03:47:44,217 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 55 [2020-10-29 03:47:44,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:44,219 INFO L225 Difference]: With dead ends: 86 [2020-10-29 03:47:44,219 INFO L226 Difference]: Without dead ends: 82 [2020-10-29 03:47:44,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2020-10-29 03:47:44,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-29 03:47:44,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2020-10-29 03:47:44,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-29 03:47:44,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 85 transitions. [2020-10-29 03:47:44,242 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 85 transitions. Word has length 55 [2020-10-29 03:47:44,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:44,242 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 85 transitions. [2020-10-29 03:47:44,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 03:47:44,243 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 85 transitions. [2020-10-29 03:47:44,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-29 03:47:44,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:44,245 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:44,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 03:47:44,245 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:44,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:44,245 INFO L82 PathProgramCache]: Analyzing trace with hash -2126896396, now seen corresponding path program 17 times [2020-10-29 03:47:44,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:44,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145945568] [2020-10-29 03:47:44,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:44,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:44,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:45,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:46,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:46,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 03:47:46,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:46,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2046 [2020-10-29 03:47:46,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:46,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 03:47:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-29 03:47:46,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:46,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:46,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:46,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:46,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:46,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:46,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:46,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:47:46,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:46,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:46,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:46,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:46,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:46,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:46,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 03:47:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:46,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:46,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:46,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:46,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:46,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:47:46,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:46,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:46,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:46,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:46,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:46,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:46,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:47:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:46,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:46,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:46,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:46,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:46,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:46,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:46,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:46,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:46,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:46,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:46,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:46,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 03:47:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:46,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:46,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:46,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:46,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:46,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:46,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:46,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:46,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:46,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:47:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:46,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:46,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:46,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:46,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:46,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 03:47:46,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:46,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:46,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:46,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:46,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:46,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:46,927 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 8 proven. 47 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-29 03:47:46,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145945568] [2020-10-29 03:47:46,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:46,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 03:47:46,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869952950] [2020-10-29 03:47:46,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 03:47:46,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:46,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 03:47:46,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2020-10-29 03:47:46,936 INFO L87 Difference]: Start difference. First operand 78 states and 85 transitions. Second operand 19 states. [2020-10-29 03:47:47,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:47,853 INFO L93 Difference]: Finished difference Result 106 states and 119 transitions. [2020-10-29 03:47:47,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 03:47:47,856 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 56 [2020-10-29 03:47:47,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:47,857 INFO L225 Difference]: With dead ends: 106 [2020-10-29 03:47:47,857 INFO L226 Difference]: Without dead ends: 102 [2020-10-29 03:47:47,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2020-10-29 03:47:47,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-29 03:47:47,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 79. [2020-10-29 03:47:47,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-29 03:47:47,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2020-10-29 03:47:47,880 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 56 [2020-10-29 03:47:47,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:47,881 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2020-10-29 03:47:47,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 03:47:47,881 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2020-10-29 03:47:47,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-29 03:47:47,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:47,882 INFO L422 BasicCegarLoop]: trace histogram [7, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:47,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-29 03:47:47,882 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:47,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:47,883 INFO L82 PathProgramCache]: Analyzing trace with hash -998967263, now seen corresponding path program 18 times [2020-10-29 03:47:47,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:47,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416481970] [2020-10-29 03:47:47,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:47,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:47,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:49,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:50,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:50,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 03:47:50,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:50,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2404 [2020-10-29 03:47:50,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:50,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 03:47:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-29 03:47:50,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:50,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:50,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:50,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:50,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:50,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:50,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:50,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:50,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:50,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:50,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:50,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:50,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:50,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 03:47:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:50,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:50,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:50,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:50,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:50,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:47:50,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:50,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:50,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:50,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:50,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:50,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:50,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 03:47:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:50,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:50,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:50,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:50,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:50,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:50,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:50,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:50,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:50,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:50,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:50,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:50,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:47:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:50,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:50,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:50,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:50,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:50,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:47:50,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:50,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:50,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:50,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:50,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:50,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:50,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 03:47:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:50,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:50,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:50,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:50,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:50,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:47:50,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:50,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:50,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:50,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:50,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:50,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:50,955 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 8 proven. 54 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-29 03:47:50,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1416481970] [2020-10-29 03:47:50,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:50,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-29 03:47:50,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631852363] [2020-10-29 03:47:50,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 03:47:50,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:50,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 03:47:50,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2020-10-29 03:47:50,958 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 20 states. [2020-10-29 03:47:51,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:51,872 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2020-10-29 03:47:51,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 03:47:51,874 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 57 [2020-10-29 03:47:51,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:51,876 INFO L225 Difference]: With dead ends: 91 [2020-10-29 03:47:51,876 INFO L226 Difference]: Without dead ends: 87 [2020-10-29 03:47:51,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2020-10-29 03:47:51,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-29 03:47:51,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 65. [2020-10-29 03:47:51,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-29 03:47:51,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 67 transitions. [2020-10-29 03:47:51,894 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 67 transitions. Word has length 57 [2020-10-29 03:47:51,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:51,895 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 67 transitions. [2020-10-29 03:47:51,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 03:47:51,895 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2020-10-29 03:47:51,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-29 03:47:51,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:51,898 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:51,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-29 03:47:51,900 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:51,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:51,900 INFO L82 PathProgramCache]: Analyzing trace with hash 979106227, now seen corresponding path program 19 times [2020-10-29 03:47:51,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:51,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054463857] [2020-10-29 03:47:51,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:51,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:51,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:52,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:52,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 03:47:52,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:52,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 948 [2020-10-29 03:47:52,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:52,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:52,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 03:47:52,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:52,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 03:47:52,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:52,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:52,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:52,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:52,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:52,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:52,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:52,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:52,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:52,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:52,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:52,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 03:47:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:52,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:52,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:52,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:52,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:52,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:52,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:52,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:52,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:52,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:52,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:52,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:52,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 03:47:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:52,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:52,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:52,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:52,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:52,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:52,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:52,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:52,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:52,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:47:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:52,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:52,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:52,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:52,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:52,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:52,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:52,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:52,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:52,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:52,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:52,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:52,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 03:47:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:52,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:52,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:52,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:52,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:52,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:52,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:52,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:52,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:52,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:52,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:52,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:52,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:47:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:52,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:52,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:52,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:52,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:52,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:52,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:52,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:52,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:52,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:52,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:52,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:52,981 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-29 03:47:52,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054463857] [2020-10-29 03:47:52,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:52,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 03:47:52,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876657704] [2020-10-29 03:47:52,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 03:47:52,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:52,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 03:47:52,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-29 03:47:52,983 INFO L87 Difference]: Start difference. First operand 65 states and 67 transitions. Second operand 9 states. [2020-10-29 03:47:53,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:53,117 INFO L93 Difference]: Finished difference Result 119 states and 123 transitions. [2020-10-29 03:47:53,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 03:47:53,118 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-10-29 03:47:53,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:53,119 INFO L225 Difference]: With dead ends: 119 [2020-10-29 03:47:53,119 INFO L226 Difference]: Without dead ends: 66 [2020-10-29 03:47:53,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-29 03:47:53,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-29 03:47:53,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-29 03:47:53,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-29 03:47:53,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2020-10-29 03:47:53,133 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 62 [2020-10-29 03:47:53,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:53,133 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2020-10-29 03:47:53,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 03:47:53,133 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2020-10-29 03:47:53,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-29 03:47:53,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:53,134 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:53,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-29 03:47:53,134 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:53,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:53,135 INFO L82 PathProgramCache]: Analyzing trace with hash -850189247, now seen corresponding path program 20 times [2020-10-29 03:47:53,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:53,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017396357] [2020-10-29 03:47:53,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:53,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:53,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:54,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:54,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-29 03:47:54,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:54,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1346 [2020-10-29 03:47:54,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:54,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:54,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 03:47:54,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:47:54,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 03:47:54,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:54,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:54,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:54,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:54,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:54,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:54,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:54,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:54,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:54,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:54,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 03:47:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:54,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:54,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:54,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:54,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:54,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:54,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:54,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:54,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:54,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:54,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:54,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:54,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:47:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:54,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:54,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:54,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:54,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:54,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:54,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:54,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:54,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:54,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 03:47:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:54,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:54,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:54,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:54,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:54,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:54,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:54,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:54,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:54,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:54,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:47:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:54,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:54,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:54,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:54,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:54,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:54,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:54,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:54,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:54,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:54,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:54,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:54,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 03:47:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:54,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:54,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:54,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:54,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:54,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:54,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:54,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:54,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:54,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:54,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-29 03:47:54,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017396357] [2020-10-29 03:47:54,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:54,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 03:47:54,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494319778] [2020-10-29 03:47:54,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 03:47:54,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:54,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 03:47:54,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-29 03:47:54,608 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand 9 states. [2020-10-29 03:47:54,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:54,796 INFO L93 Difference]: Finished difference Result 117 states and 121 transitions. [2020-10-29 03:47:54,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 03:47:54,797 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2020-10-29 03:47:54,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:54,798 INFO L225 Difference]: With dead ends: 117 [2020-10-29 03:47:54,798 INFO L226 Difference]: Without dead ends: 71 [2020-10-29 03:47:54,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-29 03:47:54,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-29 03:47:54,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2020-10-29 03:47:54,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-29 03:47:54,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 69 transitions. [2020-10-29 03:47:54,811 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 69 transitions. Word has length 63 [2020-10-29 03:47:54,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:54,811 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 69 transitions. [2020-10-29 03:47:54,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 03:47:54,812 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2020-10-29 03:47:54,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-29 03:47:54,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:54,812 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:54,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-29 03:47:54,813 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:54,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:54,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1372168274, now seen corresponding path program 21 times [2020-10-29 03:47:54,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:54,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129159899] [2020-10-29 03:47:54,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:54,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:54,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:55,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:57,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:57,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 03:47:57,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:57,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2500 [2020-10-29 03:47:57,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:57,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:57,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 03:47:57,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:57,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 03:47:57,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:57,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:57,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:57,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:57,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:57,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:57,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:57,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:57,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:57,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:57,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:57,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:57,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:57,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 03:47:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:57,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:57,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:57,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:57,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:57,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:57,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:57,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:57,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:57,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:57,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:57,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 03:47:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:57,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:57,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:57,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:57,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:57,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:57,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:57,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:57,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:57,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:47:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:57,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:57,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:57,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:57,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:57,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:57,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:57,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:57,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:57,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:57,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 03:47:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:57,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:57,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:57,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:57,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:57,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:57,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:57,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:57,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:57,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:57,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:57,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:57,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:47:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:57,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:57,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:57,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:57,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:57,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:57,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:57,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:57,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:57,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:57,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:57,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:57,821 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 10 proven. 61 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-29 03:47:57,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129159899] [2020-10-29 03:47:57,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:57,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-29 03:47:57,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003133216] [2020-10-29 03:47:57,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 03:47:57,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:57,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 03:47:57,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2020-10-29 03:47:57,824 INFO L87 Difference]: Start difference. First operand 67 states and 69 transitions. Second operand 20 states. [2020-10-29 03:47:58,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:58,704 INFO L93 Difference]: Finished difference Result 98 states and 107 transitions. [2020-10-29 03:47:58,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 03:47:58,705 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 64 [2020-10-29 03:47:58,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:58,706 INFO L225 Difference]: With dead ends: 98 [2020-10-29 03:47:58,706 INFO L226 Difference]: Without dead ends: 94 [2020-10-29 03:47:58,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2020-10-29 03:47:58,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-29 03:47:58,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2020-10-29 03:47:58,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-29 03:47:58,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2020-10-29 03:47:58,727 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 64 [2020-10-29 03:47:58,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:58,727 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2020-10-29 03:47:58,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 03:47:58,728 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2020-10-29 03:47:58,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-29 03:47:58,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:58,729 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:58,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-29 03:47:58,729 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:58,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:58,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1545774689, now seen corresponding path program 22 times [2020-10-29 03:47:58,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:58,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997237636] [2020-10-29 03:47:58,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:58,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:58,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:59,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:01,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:01,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 03:48:01,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:48:01,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2762 [2020-10-29 03:48:01,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:01,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:01,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 03:48:01,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:01,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-29 03:48:01,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:02,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:02,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:02,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:02,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:02,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:02,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:02,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:02,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:02,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:02,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:02,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 03:48:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:02,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:02,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:02,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:02,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:02,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:02,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:02,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:02,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:02,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:02,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:02,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:48:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:02,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:02,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:02,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:02,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:02,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:02,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:02,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:02,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:02,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:02,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:02,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 03:48:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:02,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:02,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:02,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:02,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:02,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:02,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:02,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:02,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:02,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:48:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:02,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:02,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:02,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:02,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:02,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:02,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:02,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:02,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:02,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:02,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:02,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 03:48:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:02,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:02,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:02,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:02,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:02,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:02,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:02,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:02,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:02,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:02,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:02,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,095 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 10 proven. 68 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-29 03:48:02,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997237636] [2020-10-29 03:48:02,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:02,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 03:48:02,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597422380] [2020-10-29 03:48:02,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 03:48:02,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:02,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 03:48:02,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2020-10-29 03:48:02,097 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand 21 states. [2020-10-29 03:48:03,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:03,319 INFO L93 Difference]: Finished difference Result 124 states and 140 transitions. [2020-10-29 03:48:03,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 03:48:03,320 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 65 [2020-10-29 03:48:03,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:03,321 INFO L225 Difference]: With dead ends: 124 [2020-10-29 03:48:03,321 INFO L226 Difference]: Without dead ends: 120 [2020-10-29 03:48:03,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2020-10-29 03:48:03,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-29 03:48:03,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 91. [2020-10-29 03:48:03,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-29 03:48:03,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-10-29 03:48:03,343 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 65 [2020-10-29 03:48:03,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:03,343 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-10-29 03:48:03,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 03:48:03,344 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-10-29 03:48:03,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-29 03:48:03,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:03,345 INFO L422 BasicCegarLoop]: trace histogram [8, 6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:03,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-29 03:48:03,345 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:03,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:03,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1662361038, now seen corresponding path program 23 times [2020-10-29 03:48:03,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:03,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580749365] [2020-10-29 03:48:03,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:03,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:03,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:04,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:06,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:06,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 03:48:06,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:48:06,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3366 [2020-10-29 03:48:06,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:06,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:06,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 03:48:06,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:06,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 03:48:06,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:07,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:07,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:07,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:07,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:07,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:07,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:07,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:07,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:07,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:07,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:48:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:07,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:07,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:07,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:07,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:07,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:07,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:07,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:07,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:07,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:07,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:07,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:07,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 03:48:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:07,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:07,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:07,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:07,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:07,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:07,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:07,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:07,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:07,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:07,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:07,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:07,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:48:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:07,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:07,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:07,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:07,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:07,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:07,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:07,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:07,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:07,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:07,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:07,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:07,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 03:48:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:07,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:07,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:07,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:07,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:07,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:07,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:07,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:07,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:07,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:07,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:07,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:07,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:48:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:07,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:07,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:07,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:07,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:07,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:07,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:07,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:07,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:07,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:07,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:07,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:07,316 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 10 proven. 76 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-29 03:48:07,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580749365] [2020-10-29 03:48:07,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:07,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 03:48:07,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040184614] [2020-10-29 03:48:07,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 03:48:07,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:07,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 03:48:07,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2020-10-29 03:48:07,318 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand 22 states. [2020-10-29 03:48:08,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:08,680 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions. [2020-10-29 03:48:08,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 03:48:08,680 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 66 [2020-10-29 03:48:08,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:08,681 INFO L225 Difference]: With dead ends: 103 [2020-10-29 03:48:08,681 INFO L226 Difference]: Without dead ends: 99 [2020-10-29 03:48:08,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=103, Invalid=889, Unknown=0, NotChecked=0, Total=992 [2020-10-29 03:48:08,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-29 03:48:08,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 74. [2020-10-29 03:48:08,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-29 03:48:08,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2020-10-29 03:48:08,695 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 66 [2020-10-29 03:48:08,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:08,695 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2020-10-29 03:48:08,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 03:48:08,695 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2020-10-29 03:48:08,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-29 03:48:08,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:08,696 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:08,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-29 03:48:08,697 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:08,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:08,697 INFO L82 PathProgramCache]: Analyzing trace with hash -570173950, now seen corresponding path program 24 times [2020-10-29 03:48:08,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:08,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [435908532] [2020-10-29 03:48:08,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:08,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:08,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:10,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:10,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 03:48:10,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:48:10,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1346 [2020-10-29 03:48:10,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:10,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:10,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 03:48:10,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:10,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 03:48:10,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:10,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:10,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:10,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:10,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:10,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:10,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:10,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:10,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:10,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:10,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 03:48:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:10,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:10,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:10,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:10,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:10,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:10,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:10,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:10,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:10,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:10,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:10,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:10,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 03:48:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:10,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:10,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:10,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:10,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:10,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:10,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:10,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:10,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:10,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:10,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:10,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:10,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:48:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:10,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:10,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:10,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:10,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:10,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:10,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:10,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:10,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:10,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:10,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 03:48:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:10,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:10,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:10,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:10,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:10,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:10,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:10,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:10,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:10,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:10,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:10,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:10,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:48:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:10,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:10,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:10,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:10,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:10,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:10,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:10,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:10,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:10,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:10,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:10,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:10,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 03:48:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:10,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:10,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:10,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:10,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:10,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:10,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:10,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:10,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:10,172 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2020-10-29 03:48:10,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [435908532] [2020-10-29 03:48:10,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:10,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 03:48:10,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680153299] [2020-10-29 03:48:10,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 03:48:10,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:10,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 03:48:10,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-29 03:48:10,174 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand 10 states. [2020-10-29 03:48:10,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:10,322 INFO L93 Difference]: Finished difference Result 136 states and 140 transitions. [2020-10-29 03:48:10,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 03:48:10,323 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-10-29 03:48:10,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:10,324 INFO L225 Difference]: With dead ends: 136 [2020-10-29 03:48:10,324 INFO L226 Difference]: Without dead ends: 75 [2020-10-29 03:48:10,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-29 03:48:10,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-29 03:48:10,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-10-29 03:48:10,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-29 03:48:10,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 77 transitions. [2020-10-29 03:48:10,339 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 77 transitions. Word has length 71 [2020-10-29 03:48:10,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:10,339 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 77 transitions. [2020-10-29 03:48:10,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 03:48:10,339 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2020-10-29 03:48:10,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-29 03:48:10,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:10,340 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:10,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-29 03:48:10,340 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:10,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:10,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1043901236, now seen corresponding path program 25 times [2020-10-29 03:48:10,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:10,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956937105] [2020-10-29 03:48:10,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:10,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:10,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:12,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:12,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 03:48:12,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:48:12,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1644 [2020-10-29 03:48:12,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:12,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:12,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 03:48:12,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 03:48:12,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 03:48:12,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:12,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:12,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:12,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:12,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:12,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:12,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:12,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:12,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:12,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:12,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:12,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:12,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:12,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 03:48:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:12,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:12,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:12,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:12,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:12,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:12,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:12,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:12,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:12,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:12,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:12,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:12,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:48:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:12,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:12,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:12,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:12,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:12,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:12,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:12,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:12,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:12,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:12,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:12,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:12,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 03:48:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:12,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:12,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:12,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:12,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:12,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:12,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:12,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:12,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:12,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:12,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:12,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:12,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:48:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:12,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:12,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:12,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:12,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:12,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:12,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:12,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:12,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:12,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:12,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:12,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:12,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 03:48:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:12,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:12,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:12,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:12,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:12,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:12,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:12,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:12,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:12,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:12,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:12,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:12,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:48:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:12,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:12,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:12,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:12,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:12,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:12,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:12,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:12,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:12,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:12,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:12,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:12,134 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-29 03:48:12,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956937105] [2020-10-29 03:48:12,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:12,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 03:48:12,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047441111] [2020-10-29 03:48:12,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 03:48:12,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:12,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 03:48:12,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-29 03:48:12,136 INFO L87 Difference]: Start difference. First operand 75 states and 77 transitions. Second operand 10 states. [2020-10-29 03:48:12,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:12,363 INFO L93 Difference]: Finished difference Result 133 states and 137 transitions. [2020-10-29 03:48:12,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 03:48:12,364 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2020-10-29 03:48:12,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:12,365 INFO L225 Difference]: With dead ends: 133 [2020-10-29 03:48:12,365 INFO L226 Difference]: Without dead ends: 80 [2020-10-29 03:48:12,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-29 03:48:12,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-29 03:48:12,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 76. [2020-10-29 03:48:12,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-29 03:48:12,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 78 transitions. [2020-10-29 03:48:12,378 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 78 transitions. Word has length 72 [2020-10-29 03:48:12,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:12,379 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 78 transitions. [2020-10-29 03:48:12,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 03:48:12,379 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2020-10-29 03:48:12,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-29 03:48:12,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:12,380 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:12,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-29 03:48:12,380 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:12,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:12,381 INFO L82 PathProgramCache]: Analyzing trace with hash 825197089, now seen corresponding path program 26 times [2020-10-29 03:48:12,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:12,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529124274] [2020-10-29 03:48:12,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:12,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:12,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:13,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:15,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:15,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 03:48:15,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:48:15,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3578 [2020-10-29 03:48:15,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:15,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 03:48:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 03:48:15,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:16,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:16,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:16,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:16,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:16,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:16,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:16,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:16,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:16,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:16,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:16,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:16,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:16,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:48:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:16,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:16,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:16,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:16,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:16,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:16,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:16,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:16,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:16,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:16,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:16,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:16,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 03:48:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:16,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:16,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:16,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:16,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:16,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:16,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:16,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:16,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:16,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:16,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:16,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:16,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:48:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:16,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:16,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:16,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:16,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:16,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:16,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:16,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:16,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:16,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:16,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:16,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 03:48:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:16,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:16,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:16,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:16,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:16,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:16,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:16,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:16,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:16,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:16,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:48:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:16,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:16,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:16,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:16,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:16,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:16,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:16,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:16,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:16,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:16,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:16,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:16,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 03:48:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:16,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:16,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:16,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:16,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:16,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:16,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:16,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:16,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:16,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:16,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:16,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:16,538 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 12 proven. 85 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-29 03:48:16,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529124274] [2020-10-29 03:48:16,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:16,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 03:48:16,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384594640] [2020-10-29 03:48:16,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 03:48:16,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:16,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 03:48:16,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=420, Unknown=0, NotChecked=0, Total=462 [2020-10-29 03:48:16,540 INFO L87 Difference]: Start difference. First operand 76 states and 78 transitions. Second operand 22 states. [2020-10-29 03:48:17,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:17,738 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2020-10-29 03:48:17,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 03:48:17,739 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 73 [2020-10-29 03:48:17,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:17,740 INFO L225 Difference]: With dead ends: 110 [2020-10-29 03:48:17,741 INFO L226 Difference]: Without dead ends: 106 [2020-10-29 03:48:17,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2020-10-29 03:48:17,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-29 03:48:17,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2020-10-29 03:48:17,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-29 03:48:17,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 111 transitions. [2020-10-29 03:48:17,763 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 111 transitions. Word has length 73 [2020-10-29 03:48:17,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:17,764 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 111 transitions. [2020-10-29 03:48:17,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 03:48:17,764 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 111 transitions. [2020-10-29 03:48:17,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-29 03:48:17,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:17,765 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:17,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-29 03:48:17,765 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:17,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:17,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1659664172, now seen corresponding path program 27 times [2020-10-29 03:48:17,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:17,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956188699] [2020-10-29 03:48:17,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:17,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:17,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:19,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:22,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:22,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 03:48:22,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:48:22,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4658 [2020-10-29 03:48:22,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:22,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:22,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 03:48:22,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:22,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 03:48:22,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:23,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:23,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:23,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:23,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:23,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:23,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:23,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:23,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:23,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:23,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:23,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:23,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:23,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 03:48:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:23,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:23,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:23,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:23,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:23,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:23,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:23,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:23,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:23,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:23,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:23,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:23,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:48:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:23,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:23,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:23,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:23,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:23,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:23,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:23,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:23,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:23,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:23,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:23,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:23,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 03:48:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:23,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:23,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:23,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:23,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:23,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:23,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:23,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:23,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:23,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:23,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:23,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:23,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:48:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:23,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:23,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:23,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:23,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:23,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:23,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:23,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:23,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:23,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:23,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:23,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:23,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 03:48:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:23,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:23,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:23,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:23,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:23,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:23,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:23,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:23,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:23,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:23,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:23,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:23,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 03:48:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:23,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:23,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:23,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:23,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:23,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:23,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:23,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:23,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:23,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:23,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:23,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:23,166 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 12 proven. 93 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-29 03:48:23,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956188699] [2020-10-29 03:48:23,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:23,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-29 03:48:23,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526426506] [2020-10-29 03:48:23,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-29 03:48:23,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:23,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-29 03:48:23,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=461, Unknown=0, NotChecked=0, Total=506 [2020-10-29 03:48:23,168 INFO L87 Difference]: Start difference. First operand 102 states and 111 transitions. Second operand 23 states. [2020-10-29 03:48:25,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:25,065 INFO L93 Difference]: Finished difference Result 140 states and 158 transitions. [2020-10-29 03:48:25,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-29 03:48:25,066 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 74 [2020-10-29 03:48:25,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:25,068 INFO L225 Difference]: With dead ends: 140 [2020-10-29 03:48:25,068 INFO L226 Difference]: Without dead ends: 136 [2020-10-29 03:48:25,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=147, Invalid=1493, Unknown=0, NotChecked=0, Total=1640 [2020-10-29 03:48:25,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-29 03:48:25,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 103. [2020-10-29 03:48:25,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-29 03:48:25,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 113 transitions. [2020-10-29 03:48:25,093 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 113 transitions. Word has length 74 [2020-10-29 03:48:25,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:25,094 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 113 transitions. [2020-10-29 03:48:25,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-29 03:48:25,094 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 113 transitions. [2020-10-29 03:48:25,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-29 03:48:25,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:25,097 INFO L422 BasicCegarLoop]: trace histogram [9, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:25,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-29 03:48:25,098 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:25,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:25,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1380951935, now seen corresponding path program 28 times [2020-10-29 03:48:25,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:25,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300304334] [2020-10-29 03:48:25,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:25,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:25,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:26,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:29,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:29,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 03:48:29,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:48:29,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4626 [2020-10-29 03:48:29,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:29,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:29,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 03:48:29,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:29,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 03:48:29,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:30,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:48:30,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:30,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:48:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:30,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:30,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:30,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:30,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:30,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 03:48:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:30,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:30,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:30,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:30,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:30,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:48:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:30,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:30,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:30,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:30,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:30,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 03:48:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:30,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:30,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:30,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:30,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:30,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:48:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:30,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:48:30,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:30,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:30,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:30,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 03:48:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:30,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:30,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:30,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:30,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:30,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,510 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 12 proven. 102 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-29 03:48:30,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300304334] [2020-10-29 03:48:30,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:30,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 03:48:30,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137811340] [2020-10-29 03:48:30,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 03:48:30,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:30,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 03:48:30,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=503, Unknown=0, NotChecked=0, Total=552 [2020-10-29 03:48:30,512 INFO L87 Difference]: Start difference. First operand 103 states and 113 transitions. Second operand 24 states. [2020-10-29 03:48:32,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:32,119 INFO L93 Difference]: Finished difference Result 115 states and 125 transitions. [2020-10-29 03:48:32,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 03:48:32,120 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 75 [2020-10-29 03:48:32,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:32,121 INFO L225 Difference]: With dead ends: 115 [2020-10-29 03:48:32,121 INFO L226 Difference]: Without dead ends: 111 [2020-10-29 03:48:32,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=113, Invalid=1077, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 03:48:32,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-29 03:48:32,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 83. [2020-10-29 03:48:32,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-29 03:48:32,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 85 transitions. [2020-10-29 03:48:32,139 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 85 transitions. Word has length 75 [2020-10-29 03:48:32,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:32,139 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 85 transitions. [2020-10-29 03:48:32,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 03:48:32,140 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 85 transitions. [2020-10-29 03:48:32,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-29 03:48:32,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:32,146 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:32,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-29 03:48:32,146 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:32,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:32,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1165877933, now seen corresponding path program 29 times [2020-10-29 03:48:32,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:32,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [82452381] [2020-10-29 03:48:32,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:32,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:32,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:34,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:34,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-29 03:48:34,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:48:34,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2169 [2020-10-29 03:48:34,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:34,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:34,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 03:48:34,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 03:48:34,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 03:48:34,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:34,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:34,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:34,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:34,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:34,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:34,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:34,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:34,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:34,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:34,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:34,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:34,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:34,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:48:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:34,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:34,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:34,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:34,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:34,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:34,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:34,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:34,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:34,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:34,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:34,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:34,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 03:48:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:34,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:34,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:34,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:34,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:34,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:34,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:34,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:34,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:34,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:34,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:34,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:34,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:48:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:34,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:34,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:34,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:34,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:34,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:34,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:34,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:34,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:34,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:34,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:34,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:34,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 03:48:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:34,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:34,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:34,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:34,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:34,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:34,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:34,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:34,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:34,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:34,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:34,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:34,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:48:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:34,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:34,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:34,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:34,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:34,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:34,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:34,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:34,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:34,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:34,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:34,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:34,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 03:48:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:34,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:34,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:34,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:34,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:34,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:34,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:34,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:34,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:34,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:34,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:34,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:34,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 03:48:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:34,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:34,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:34,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:34,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:34,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:34,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:34,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:34,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:34,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:34,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:34,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:34,478 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 14 proven. 28 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2020-10-29 03:48:34,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [82452381] [2020-10-29 03:48:34,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:34,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 03:48:34,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686466667] [2020-10-29 03:48:34,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 03:48:34,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:34,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 03:48:34,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-29 03:48:34,480 INFO L87 Difference]: Start difference. First operand 83 states and 85 transitions. Second operand 11 states. [2020-10-29 03:48:34,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:34,747 INFO L93 Difference]: Finished difference Result 158 states and 164 transitions. [2020-10-29 03:48:34,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 03:48:34,748 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2020-10-29 03:48:34,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:34,749 INFO L225 Difference]: With dead ends: 158 [2020-10-29 03:48:34,749 INFO L226 Difference]: Without dead ends: 89 [2020-10-29 03:48:34,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-29 03:48:34,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-29 03:48:34,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 85. [2020-10-29 03:48:34,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-29 03:48:34,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 87 transitions. [2020-10-29 03:48:34,771 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 87 transitions. Word has length 80 [2020-10-29 03:48:34,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:34,771 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 87 transitions. [2020-10-29 03:48:34,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 03:48:34,771 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2020-10-29 03:48:34,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-29 03:48:34,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:34,773 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:34,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-29 03:48:34,773 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:34,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:34,774 INFO L82 PathProgramCache]: Analyzing trace with hash -600361486, now seen corresponding path program 30 times [2020-10-29 03:48:34,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:34,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2061997226] [2020-10-29 03:48:34,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:34,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:34,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:36,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:39,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:39,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-29 03:48:39,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:48:39,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 03:48:39,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:39,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:39,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 03:48:39,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:39,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 03:48:39,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:40,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:40,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:40,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:40,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:40,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:40,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:40,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:40,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:40,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:40,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:40,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:40,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:48:40,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:48:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:40,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:40,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:40,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:40,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:40,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:40,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:40,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:40,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:40,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:40,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:40,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:40,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 03:48:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:40,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:40,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:40,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:40,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:40,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:40,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:40,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:40,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:40,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:40,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:40,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:40,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:48:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:40,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:40,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:40,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:40,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:40,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:40,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:40,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:40,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:40,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:40,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:40,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:40,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 03:48:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:40,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:40,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:40,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:40,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:40,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:40,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:40,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:40,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:40,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:40,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:40,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:40,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:48:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:40,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:40,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:40,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:40,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:40,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:40,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:40,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:40,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:40,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:40,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:40,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:40,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 03:48:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:40,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:40,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:40,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:40,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:40,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:40,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:40,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:40,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:40,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:40,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:40,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:40,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 03:48:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:40,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:40,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:40,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:40,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:40,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:40,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:40,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:40,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:40,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:40,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:40,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:40,613 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 14 proven. 113 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-10-29 03:48:40,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2061997226] [2020-10-29 03:48:40,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:40,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 03:48:40,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056932769] [2020-10-29 03:48:40,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 03:48:40,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:40,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 03:48:40,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=506, Unknown=0, NotChecked=0, Total=552 [2020-10-29 03:48:40,615 INFO L87 Difference]: Start difference. First operand 85 states and 87 transitions. Second operand 24 states. [2020-10-29 03:48:42,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:42,077 INFO L93 Difference]: Finished difference Result 122 states and 133 transitions. [2020-10-29 03:48:42,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 03:48:42,078 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 82 [2020-10-29 03:48:42,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:42,082 INFO L225 Difference]: With dead ends: 122 [2020-10-29 03:48:42,082 INFO L226 Difference]: Without dead ends: 118 [2020-10-29 03:48:42,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=99, Invalid=1161, Unknown=0, NotChecked=0, Total=1260 [2020-10-29 03:48:42,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-29 03:48:42,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2020-10-29 03:48:42,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-29 03:48:42,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2020-10-29 03:48:42,108 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 82 [2020-10-29 03:48:42,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:42,109 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2020-10-29 03:48:42,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 03:48:42,109 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2020-10-29 03:48:42,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-29 03:48:42,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:42,110 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:42,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-29 03:48:42,111 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:42,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:42,111 INFO L82 PathProgramCache]: Analyzing trace with hash -460606847, now seen corresponding path program 31 times [2020-10-29 03:48:42,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:42,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347359154] [2020-10-29 03:48:42,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:42,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:42,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:44,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:47,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:47,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-29 03:48:47,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:48:47,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 03:48:47,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:47,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:47,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 03:48:47,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:47,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 03:48:47,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:47,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:47,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:47,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:47,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:47,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:47,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:47,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:47,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:47,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:47,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:47,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:47,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:47,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 03:48:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:47,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:47,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:47,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:47,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:47,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:47,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:47,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:47,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:47,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:47,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:47,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:47,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:48:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:47,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:47,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:47,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:47,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:47,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:47,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:47,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:47,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:47,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 03:48:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:47,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:47,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:47,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:47,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:47,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:47,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:47,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:47,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:47,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:47,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:47,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:47,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:48:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:47,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:47,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:47,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:47,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:47,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:47,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:47,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:47,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:47,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:47,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 03:48:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:47,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:47,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:47,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:47,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:47,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:47,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:47,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:47,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:47,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:47,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:47,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:47,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 03:48:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:47,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:47,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:47,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:47,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:47,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:47,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:47,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:47,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:47,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:47,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:47,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:47,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 03:48:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:47,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:47,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:47,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:47,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:47,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:47,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:47,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:47,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:47,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:47,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:47,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:47,994 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 14 proven. 122 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-10-29 03:48:47,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347359154] [2020-10-29 03:48:47,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:47,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-29 03:48:47,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257368213] [2020-10-29 03:48:47,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-29 03:48:47,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:47,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-29 03:48:47,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=549, Unknown=0, NotChecked=0, Total=600 [2020-10-29 03:48:47,996 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand 25 states. [2020-10-29 03:48:49,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:49,579 INFO L93 Difference]: Finished difference Result 151 states and 170 transitions. [2020-10-29 03:48:49,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 03:48:49,580 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 83 [2020-10-29 03:48:49,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:49,581 INFO L225 Difference]: With dead ends: 151 [2020-10-29 03:48:49,582 INFO L226 Difference]: Without dead ends: 147 [2020-10-29 03:48:49,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=101, Invalid=1159, Unknown=0, NotChecked=0, Total=1260 [2020-10-29 03:48:49,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-29 03:48:49,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 115. [2020-10-29 03:48:49,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-29 03:48:49,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 126 transitions. [2020-10-29 03:48:49,627 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 126 transitions. Word has length 83 [2020-10-29 03:48:49,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:49,628 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 126 transitions. [2020-10-29 03:48:49,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-29 03:48:49,628 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 126 transitions. [2020-10-29 03:48:49,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-29 03:48:49,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:49,630 INFO L422 BasicCegarLoop]: trace histogram [10, 8, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:49,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-29 03:48:49,630 INFO L429 AbstractCegarLoop]: === Iteration 38 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:49,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:49,631 INFO L82 PathProgramCache]: Analyzing trace with hash -423180334, now seen corresponding path program 32 times [2020-10-29 03:48:49,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:49,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [959844032] [2020-10-29 03:48:49,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:49,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:49,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:52,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:54,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:54,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 03:48:54,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:48:54,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 03:48:54,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:54,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:54,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-29 03:48:54,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:54,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-29 03:48:54,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:55,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:55,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:55,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:55,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:55,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:55,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:55,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:55,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:55,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:55,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:55,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:55,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:55,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:48:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:55,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:55,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:55,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:55,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:55,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:55,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:55,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:55,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:55,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:55,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:55,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:55,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 03:48:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:55,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:55,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:55,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:55,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:55,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:55,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:55,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:55,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:55,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:55,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:55,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:55,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:48:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:55,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:55,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:55,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:55,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:55,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:55,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:55,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:55,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:55,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:55,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:55,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:55,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 03:48:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:55,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:55,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:55,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:55,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:55,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:55,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:55,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:55,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:55,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:48:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:55,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:55,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:55,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:55,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:55,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:55,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:55,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:55,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:55,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:55,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:55,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:55,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 03:48:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:55,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:55,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:55,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:55,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:55,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:55,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:55,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:55,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:55,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:55,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:55,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:55,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 03:48:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:55,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:55,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:55,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:55,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:55,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:55,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:55,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:55,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:55,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:55,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:55,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:55,533 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 14 proven. 132 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-10-29 03:48:55,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [959844032] [2020-10-29 03:48:55,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:55,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-29 03:48:55,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296138630] [2020-10-29 03:48:55,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-29 03:48:55,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:55,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-29 03:48:55,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=597, Unknown=0, NotChecked=0, Total=650 [2020-10-29 03:48:55,536 INFO L87 Difference]: Start difference. First operand 115 states and 126 transitions. Second operand 26 states. [2020-10-29 03:48:57,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:57,445 INFO L93 Difference]: Finished difference Result 127 states and 138 transitions. [2020-10-29 03:48:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 03:48:57,450 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 84 [2020-10-29 03:48:57,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:57,452 INFO L225 Difference]: With dead ends: 127 [2020-10-29 03:48:57,452 INFO L226 Difference]: Without dead ends: 123 [2020-10-29 03:48:57,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=123, Invalid=1283, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 03:48:57,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-29 03:48:57,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 92. [2020-10-29 03:48:57,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-29 03:48:57,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 94 transitions. [2020-10-29 03:48:57,473 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 94 transitions. Word has length 84 [2020-10-29 03:48:57,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:57,474 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 94 transitions. [2020-10-29 03:48:57,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-29 03:48:57,474 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 94 transitions. [2020-10-29 03:48:57,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-29 03:48:57,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:57,476 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:57,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-29 03:48:57,476 INFO L429 AbstractCegarLoop]: === Iteration 39 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:57,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:57,477 INFO L82 PathProgramCache]: Analyzing trace with hash 718318690, now seen corresponding path program 33 times [2020-10-29 03:48:57,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:57,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223549289] [2020-10-29 03:48:57,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:57,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:57,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:00,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:00,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-29 03:49:00,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:49:00,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2889 [2020-10-29 03:49:00,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:00,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 03:49:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:49:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 03:49:00,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:00,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:00,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:00,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:00,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:00,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:00,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:00,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:00,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:00,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:00,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:00,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:00,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:00,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:49:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:00,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:00,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:00,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:00,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:00,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:00,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:00,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:00,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:00,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:00,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:00,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:00,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 03:49:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:00,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:00,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:00,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:00,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:00,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:00,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:00,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:00,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:00,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:49:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:00,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:00,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:00,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:00,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:00,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:00,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:00,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:00,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:00,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 03:49:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:00,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:00,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:00,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:00,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:00,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:00,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:00,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:00,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:00,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:00,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:00,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:00,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:49:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:00,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:00,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:00,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:00,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:00,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:00,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:00,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:00,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:00,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 03:49:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:00,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:00,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:00,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:00,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:00,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:00,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:00,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:00,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:00,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:00,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:00,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:00,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 03:49:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:00,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:00,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:00,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:00,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:00,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:00,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:00,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:00,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:00,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:00,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:00,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:00,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 03:49:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:00,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:00,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:00,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:00,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:00,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:00,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:00,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:00,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:00,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:00,538 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 16 proven. 36 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2020-10-29 03:49:00,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223549289] [2020-10-29 03:49:00,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:00,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 03:49:00,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604995278] [2020-10-29 03:49:00,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 03:49:00,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:00,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 03:49:00,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:49:00,540 INFO L87 Difference]: Start difference. First operand 92 states and 94 transitions. Second operand 12 states. [2020-10-29 03:49:00,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:00,712 INFO L93 Difference]: Finished difference Result 170 states and 174 transitions. [2020-10-29 03:49:00,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 03:49:00,719 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-10-29 03:49:00,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:00,720 INFO L225 Difference]: With dead ends: 170 [2020-10-29 03:49:00,721 INFO L226 Difference]: Without dead ends: 93 [2020-10-29 03:49:00,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:49:00,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-29 03:49:00,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-10-29 03:49:00,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-29 03:49:00,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 95 transitions. [2020-10-29 03:49:00,737 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 95 transitions. Word has length 89 [2020-10-29 03:49:00,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:00,737 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 95 transitions. [2020-10-29 03:49:00,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 03:49:00,737 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 95 transitions. [2020-10-29 03:49:00,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-29 03:49:00,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:00,738 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:00,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-29 03:49:00,738 INFO L429 AbstractCegarLoop]: === Iteration 40 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:00,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:00,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1419860244, now seen corresponding path program 34 times [2020-10-29 03:49:00,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:00,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422211036] [2020-10-29 03:49:00,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:00,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:00,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:04,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:04,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 03:49:04,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:49:04,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3355 [2020-10-29 03:49:04,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:04,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:04,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 03:49:04,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 03:49:04,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 03:49:04,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:04,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:04,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:04,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:04,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:04,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:04,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:04,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:04,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:04,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:04,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 03:49:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:04,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:04,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:04,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:04,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:04,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:04,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:04,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:04,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:04,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:04,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:04,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:04,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:49:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:04,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:04,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:04,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:04,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:04,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:04,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:04,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:04,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:04,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:04,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:04,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:04,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 03:49:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:04,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:04,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:04,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:04,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:04,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:04,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:04,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:04,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:04,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:04,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:04,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:04,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:49:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:04,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:04,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:04,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:04,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:04,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:04,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:04,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:04,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:04,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:04,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:04,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:04,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 03:49:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:04,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:04,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:04,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:04,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:04,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:04,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:04,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:04,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:04,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:04,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:04,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:04,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 03:49:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:04,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:04,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:04,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:04,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:04,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:04,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:04,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:04,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:04,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:04,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:04,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:04,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 03:49:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:04,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:04,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:04,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:04,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:04,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:04,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:04,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:04,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:04,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:04,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 03:49:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:04,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:04,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:04,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:04,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:04,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:04,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:04,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:04,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:04,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:04,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:04,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:04,273 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 16 proven. 36 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2020-10-29 03:49:04,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422211036] [2020-10-29 03:49:04,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:04,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 03:49:04,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906362025] [2020-10-29 03:49:04,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 03:49:04,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:04,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 03:49:04,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:49:04,275 INFO L87 Difference]: Start difference. First operand 93 states and 95 transitions. Second operand 12 states. [2020-10-29 03:49:04,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:04,571 INFO L93 Difference]: Finished difference Result 165 states and 169 transitions. [2020-10-29 03:49:04,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 03:49:04,573 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2020-10-29 03:49:04,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:04,575 INFO L225 Difference]: With dead ends: 165 [2020-10-29 03:49:04,576 INFO L226 Difference]: Without dead ends: 98 [2020-10-29 03:49:04,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:49:04,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-29 03:49:04,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2020-10-29 03:49:04,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-29 03:49:04,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 96 transitions. [2020-10-29 03:49:04,599 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 96 transitions. Word has length 90 [2020-10-29 03:49:04,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:04,599 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 96 transitions. [2020-10-29 03:49:04,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 03:49:04,599 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 96 transitions. [2020-10-29 03:49:04,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-29 03:49:04,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:04,600 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:04,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-29 03:49:04,600 INFO L429 AbstractCegarLoop]: === Iteration 41 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:04,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:04,601 INFO L82 PathProgramCache]: Analyzing trace with hash 80063105, now seen corresponding path program 35 times [2020-10-29 03:49:04,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:04,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079268196] [2020-10-29 03:49:04,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:04,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:04,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:06,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:09,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:09,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 03:49:09,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:49:09,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 03:49:09,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:09,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:09,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-29 03:49:09,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:49:09,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 03:49:09,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:10,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:10,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:10,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:10,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:10,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:10,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:10,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:10,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:10,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:10,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:10,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:10,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:10,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:49:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:10,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:10,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:10,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:10,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:10,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:10,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:10,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:10,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:10,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:10,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:10,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:10,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 03:49:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:10,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:10,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:10,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:10,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:10,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:10,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:10,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:10,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:10,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:10,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:10,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:49:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:10,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:10,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:10,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:10,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:10,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:10,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:10,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:10,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:10,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:10,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:10,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:10,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 03:49:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:10,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:10,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:10,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:10,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:10,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:10,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:10,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:10,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:10,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:49:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:10,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:10,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:10,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:10,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:10,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:10,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:10,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:10,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:10,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:10,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:10,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:10,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 03:49:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:10,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:10,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:10,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:10,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:10,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:10,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:10,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:10,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:10,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:10,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:10,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:10,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 03:49:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:10,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:10,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:10,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:10,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:10,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:10,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:10,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:10,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:10,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:10,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:10,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:10,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 03:49:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:10,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:10,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:10,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:10,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:10,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:10,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:10,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:10,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:10,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:10,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:10,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:10,485 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 16 proven. 145 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-10-29 03:49:10,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079268196] [2020-10-29 03:49:10,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:10,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-29 03:49:10,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66870029] [2020-10-29 03:49:10,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-29 03:49:10,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:10,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-29 03:49:10,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=599, Unknown=0, NotChecked=0, Total=650 [2020-10-29 03:49:10,487 INFO L87 Difference]: Start difference. First operand 94 states and 96 transitions. Second operand 26 states. [2020-10-29 03:49:12,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:12,225 INFO L93 Difference]: Finished difference Result 134 states and 146 transitions. [2020-10-29 03:49:12,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 03:49:12,227 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 91 [2020-10-29 03:49:12,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:12,230 INFO L225 Difference]: With dead ends: 134 [2020-10-29 03:49:12,230 INFO L226 Difference]: Without dead ends: 130 [2020-10-29 03:49:12,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=104, Invalid=1302, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 03:49:12,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-29 03:49:12,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2020-10-29 03:49:12,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-29 03:49:12,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 137 transitions. [2020-10-29 03:49:12,263 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 137 transitions. Word has length 91 [2020-10-29 03:49:12,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:12,264 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 137 transitions. [2020-10-29 03:49:12,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-29 03:49:12,264 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 137 transitions. [2020-10-29 03:49:12,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-29 03:49:12,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:12,265 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:12,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-29 03:49:12,265 INFO L429 AbstractCegarLoop]: === Iteration 42 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:12,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:12,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1496024756, now seen corresponding path program 36 times [2020-10-29 03:49:12,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:12,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742125368] [2020-10-29 03:49:12,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:12,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:12,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:14,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:17,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:17,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 03:49:17,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:49:17,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-29 03:49:17,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:17,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:17,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 03:49:17,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:49:17,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-29 03:49:17,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:18,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:18,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:18,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:18,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:18,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:18,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:18,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:18,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:18,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:18,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:18,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:18,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:18,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 03:49:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:18,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:18,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:18,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:18,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:18,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:49:18,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:18,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:18,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:18,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:18,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:18,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:18,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:49:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:18,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:18,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:18,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:18,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:18,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:18,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:18,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:18,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:18,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:18,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:18,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:18,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 03:49:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:18,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:18,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:18,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:18,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:18,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:18,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:18,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:18,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:18,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:49:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:18,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:18,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:18,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:18,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:18,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:18,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:18,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:18,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:18,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:18,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:18,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:18,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 03:49:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:18,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:18,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:18,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:18,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:18,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:49:18,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:18,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:18,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:18,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:18,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:18,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:18,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 03:49:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:18,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:18,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:18,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:18,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:18,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:49:18,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:18,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:18,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:18,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:18,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:18,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:18,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 03:49:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:18,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:18,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:18,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:18,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:18,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:49:18,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:18,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:18,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:18,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:18,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:18,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:18,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 03:49:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:18,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:18,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:18,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:18,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:18,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:49:18,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:18,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:18,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:18,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:18,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:18,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:18,277 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 16 proven. 155 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-10-29 03:49:18,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1742125368] [2020-10-29 03:49:18,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:18,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-29 03:49:18,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441488683] [2020-10-29 03:49:18,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-29 03:49:18,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:18,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-29 03:49:18,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=649, Unknown=0, NotChecked=0, Total=702 [2020-10-29 03:49:18,279 INFO L87 Difference]: Start difference. First operand 126 states and 137 transitions. Second operand 27 states. [2020-10-29 03:49:20,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:20,459 INFO L93 Difference]: Finished difference Result 169 states and 191 transitions. [2020-10-29 03:49:20,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-29 03:49:20,463 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 92 [2020-10-29 03:49:20,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:20,464 INFO L225 Difference]: With dead ends: 169 [2020-10-29 03:49:20,464 INFO L226 Difference]: Without dead ends: 165 [2020-10-29 03:49:20,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=129, Invalid=1431, Unknown=0, NotChecked=0, Total=1560 [2020-10-29 03:49:20,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-10-29 03:49:20,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 127. [2020-10-29 03:49:20,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-29 03:49:20,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 139 transitions. [2020-10-29 03:49:20,493 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 139 transitions. Word has length 92 [2020-10-29 03:49:20,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:20,494 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 139 transitions. [2020-10-29 03:49:20,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-29 03:49:20,494 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 139 transitions. [2020-10-29 03:49:20,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-29 03:49:20,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:20,495 INFO L422 BasicCegarLoop]: trace histogram [11, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:20,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-29 03:49:20,495 INFO L429 AbstractCegarLoop]: === Iteration 43 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:20,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:20,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1853804319, now seen corresponding path program 37 times [2020-10-29 03:49:20,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:20,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528462605] [2020-10-29 03:49:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:20,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:20,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:23,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:25,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:25,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 03:49:25,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:49:25,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 03:49:25,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:25,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:25,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-29 03:49:25,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:49:25,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 03:49:25,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:26,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:26,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:26,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:26,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:49:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:26,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:26,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 03:49:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:26,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:26,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:26,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:26,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:49:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:26,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:26,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:26,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:26,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 03:49:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:26,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:26,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:26,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:26,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:49:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:26,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:26,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:26,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:26,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 03:49:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:26,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:26,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:26,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:26,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 03:49:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:26,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:26,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 03:49:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:26,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:26,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:26,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:26,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,563 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 16 proven. 166 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-10-29 03:49:26,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528462605] [2020-10-29 03:49:26,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:26,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-29 03:49:26,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314253956] [2020-10-29 03:49:26,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-29 03:49:26,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:26,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-29 03:49:26,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=699, Unknown=0, NotChecked=0, Total=756 [2020-10-29 03:49:26,565 INFO L87 Difference]: Start difference. First operand 127 states and 139 transitions. Second operand 28 states. [2020-10-29 03:49:28,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:28,887 INFO L93 Difference]: Finished difference Result 139 states and 151 transitions. [2020-10-29 03:49:28,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 03:49:28,888 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 93 [2020-10-29 03:49:28,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:28,890 INFO L225 Difference]: With dead ends: 139 [2020-10-29 03:49:28,890 INFO L226 Difference]: Without dead ends: 135 [2020-10-29 03:49:28,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=133, Invalid=1507, Unknown=0, NotChecked=0, Total=1640 [2020-10-29 03:49:28,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-29 03:49:28,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 101. [2020-10-29 03:49:28,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-29 03:49:28,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 103 transitions. [2020-10-29 03:49:28,920 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 103 transitions. Word has length 93 [2020-10-29 03:49:28,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:28,923 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 103 transitions. [2020-10-29 03:49:28,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-29 03:49:28,923 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 103 transitions. [2020-10-29 03:49:28,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-29 03:49:28,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:28,924 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:28,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-29 03:49:28,924 INFO L429 AbstractCegarLoop]: === Iteration 44 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:28,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:28,925 INFO L82 PathProgramCache]: Analyzing trace with hash -174077709, now seen corresponding path program 38 times [2020-10-29 03:49:28,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:28,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1589550534] [2020-10-29 03:49:28,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:28,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:29,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:33,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:33,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 03:49:33,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:49:33,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4200 [2020-10-29 03:49:33,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:33,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:33,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 03:49:33,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 03:49:33,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 03:49:33,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:33,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:33,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:33,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:33,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:33,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:33,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:33,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:33,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:33,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:33,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:33,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:49:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:33,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:33,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:33,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:33,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:33,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 03:49:33,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:33,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:33,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:33,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:33,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:33,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:33,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 03:49:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:33,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:33,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:33,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:33,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:33,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:33,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:33,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:33,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:33,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:33,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:33,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:33,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:49:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:33,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:33,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:33,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:33,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:33,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:33,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:33,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:33,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:33,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:33,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:33,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:33,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 03:49:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:33,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:33,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:33,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:33,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:33,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:33,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:33,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:33,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:33,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:33,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:33,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:33,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:49:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:33,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:33,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:33,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:33,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:33,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:33,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:33,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:33,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 03:49:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:33,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:33,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:33,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:33,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:33,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:33,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:33,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:33,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:33,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:33,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:33,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:33,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 03:49:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:33,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:33,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:33,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:33,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:33,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:33,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:33,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:33,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:33,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 03:49:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:33,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:33,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:33,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:33,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:33,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:33,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:33,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:33,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:33,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:33,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 03:49:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:33,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:33,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:33,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:33,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:33,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:33,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:33,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:33,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:33,349 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 18 proven. 45 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2020-10-29 03:49:33,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1589550534] [2020-10-29 03:49:33,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:33,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 03:49:33,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925082970] [2020-10-29 03:49:33,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 03:49:33,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:33,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 03:49:33,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-29 03:49:33,351 INFO L87 Difference]: Start difference. First operand 101 states and 103 transitions. Second operand 13 states. [2020-10-29 03:49:33,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:33,656 INFO L93 Difference]: Finished difference Result 192 states and 198 transitions. [2020-10-29 03:49:33,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 03:49:33,657 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 98 [2020-10-29 03:49:33,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:33,659 INFO L225 Difference]: With dead ends: 192 [2020-10-29 03:49:33,659 INFO L226 Difference]: Without dead ends: 107 [2020-10-29 03:49:33,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-29 03:49:33,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-29 03:49:33,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 103. [2020-10-29 03:49:33,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-29 03:49:33,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 105 transitions. [2020-10-29 03:49:33,685 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 105 transitions. Word has length 98 [2020-10-29 03:49:33,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:33,685 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 105 transitions. [2020-10-29 03:49:33,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 03:49:33,685 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 105 transitions. [2020-10-29 03:49:33,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 03:49:33,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:33,686 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:33,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-29 03:49:33,686 INFO L429 AbstractCegarLoop]: === Iteration 45 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:33,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:33,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1593070482, now seen corresponding path program 39 times [2020-10-29 03:49:33,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:33,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728402277] [2020-10-29 03:49:33,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:33,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:33,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:36,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:38,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:38,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 03:49:38,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:49:38,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-29 03:49:38,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:38,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:38,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-29 03:49:38,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:49:38,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 03:49:38,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:39,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:39,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:39,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:39,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:39,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:39,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:39,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:39,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:39,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:39,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:39,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:39,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:39,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:49:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:39,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:39,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:39,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:39,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:39,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:39,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:39,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:39,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:39,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 03:49:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:39,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:39,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:39,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:39,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:39,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:39,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:39,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:39,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:39,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:39,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:39,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:39,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:49:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:39,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:39,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:39,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:39,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:39,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:39,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:39,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:39,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:39,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:39,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:39,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 03:49:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:39,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:39,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:39,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:39,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:39,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:39,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:39,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:39,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:39,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:39,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:49:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:39,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:39,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:39,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:39,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:39,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:39,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:39,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:39,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:39,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:39,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:39,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:39,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 03:49:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:39,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:39,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:39,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:39,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:39,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:39,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:39,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:39,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:39,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 03:49:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:39,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:39,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:39,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:39,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:39,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:39,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:39,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:39,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:39,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:39,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:39,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:39,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 03:49:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:39,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:39,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:39,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:39,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:39,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:49:39,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:39,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:39,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:39,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:39,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:39,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:39,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 03:49:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:39,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:39,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:39,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:39,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:39,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:39,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:39,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:39,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:39,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:39,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:39,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:39,715 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 18 proven. 181 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-10-29 03:49:39,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728402277] [2020-10-29 03:49:39,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:39,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-29 03:49:39,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153380275] [2020-10-29 03:49:39,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-29 03:49:39,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:39,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-29 03:49:39,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=701, Unknown=0, NotChecked=0, Total=756 [2020-10-29 03:49:39,717 INFO L87 Difference]: Start difference. First operand 103 states and 105 transitions. Second operand 28 states. [2020-10-29 03:49:41,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:41,719 INFO L93 Difference]: Finished difference Result 146 states and 159 transitions. [2020-10-29 03:49:41,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-29 03:49:41,720 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 100 [2020-10-29 03:49:41,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:41,721 INFO L225 Difference]: With dead ends: 146 [2020-10-29 03:49:41,721 INFO L226 Difference]: Without dead ends: 142 [2020-10-29 03:49:41,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=112, Invalid=1528, Unknown=0, NotChecked=0, Total=1640 [2020-10-29 03:49:41,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-29 03:49:41,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2020-10-29 03:49:41,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-29 03:49:41,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 150 transitions. [2020-10-29 03:49:41,758 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 150 transitions. Word has length 100 [2020-10-29 03:49:41,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:41,759 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 150 transitions. [2020-10-29 03:49:41,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-29 03:49:41,759 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 150 transitions. [2020-10-29 03:49:41,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 03:49:41,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:41,760 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:41,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-29 03:49:41,761 INFO L429 AbstractCegarLoop]: === Iteration 46 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:41,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:41,761 INFO L82 PathProgramCache]: Analyzing trace with hash -884791647, now seen corresponding path program 40 times [2020-10-29 03:49:41,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:41,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451286879] [2020-10-29 03:49:41,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:41,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:41,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:45,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:46,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:46,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 03:49:46,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:49:46,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 03:49:46,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:46,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:46,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-29 03:49:46,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:49:46,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 03:49:46,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:47,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:47,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:47,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:47,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:47,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:47,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:47,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:47,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:47,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:47,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:47,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:47,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:47,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 03:49:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:47,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:47,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:47,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:47,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:47,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:47,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:47,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:47,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:47,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:47,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:47,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:47,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:49:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:47,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:47,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:47,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:47,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:47,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:47,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:47,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:47,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:47,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:47,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:47,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:47,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 03:49:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:47,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:47,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:47,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:47,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:47,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:47,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:47,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:47,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:47,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:49:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:47,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:47,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:47,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:47,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:47,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:47,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:47,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:47,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:47,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:47,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:47,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:47,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 03:49:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:47,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:47,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:47,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:47,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:47,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:47,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:47,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:47,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:47,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:47,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:47,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:47,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 03:49:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:47,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:47,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:47,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:47,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:47,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:47,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:47,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:47,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:47,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:47,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:47,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:47,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 03:49:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:47,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:47,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:47,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:47,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:47,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:47,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:47,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:47,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:47,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 03:49:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:47,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:47,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:47,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:47,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:47,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:47,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:47,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:47,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:47,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:47,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:47,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:47,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 03:49:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:47,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:47,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:47,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:47,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:47,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:47,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:47,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:47,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:47,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:47,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:47,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:47,824 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 18 proven. 192 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-10-29 03:49:47,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451286879] [2020-10-29 03:49:47,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:47,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-29 03:49:47,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947945601] [2020-10-29 03:49:47,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-29 03:49:47,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:47,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-29 03:49:47,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=755, Unknown=0, NotChecked=0, Total=812 [2020-10-29 03:49:47,826 INFO L87 Difference]: Start difference. First operand 138 states and 150 transitions. Second operand 29 states. [2020-10-29 03:49:51,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:51,137 INFO L93 Difference]: Finished difference Result 185 states and 209 transitions. [2020-10-29 03:49:51,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-29 03:49:51,138 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 101 [2020-10-29 03:49:51,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:51,141 INFO L225 Difference]: With dead ends: 185 [2020-10-29 03:49:51,141 INFO L226 Difference]: Without dead ends: 181 [2020-10-29 03:49:51,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=192, Invalid=2564, Unknown=0, NotChecked=0, Total=2756 [2020-10-29 03:49:51,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-10-29 03:49:51,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 139. [2020-10-29 03:49:51,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-29 03:49:51,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 152 transitions. [2020-10-29 03:49:51,174 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 152 transitions. Word has length 101 [2020-10-29 03:49:51,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:51,174 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 152 transitions. [2020-10-29 03:49:51,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-29 03:49:51,174 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 152 transitions. [2020-10-29 03:49:51,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-29 03:49:51,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:51,175 INFO L422 BasicCegarLoop]: trace histogram [12, 10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:51,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-29 03:49:51,176 INFO L429 AbstractCegarLoop]: === Iteration 47 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:51,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:51,176 INFO L82 PathProgramCache]: Analyzing trace with hash -389106318, now seen corresponding path program 41 times [2020-10-29 03:49:51,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:51,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1712112663] [2020-10-29 03:49:51,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:51,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:51,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:55,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:56,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:56,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 03:49:56,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:49:56,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 03:49:56,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:56,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:56,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-29 03:49:56,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:49:56,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 03:49:56,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:57,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:57,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:57,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:57,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:57,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:57,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:49:57,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:57,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:57,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:57,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:49:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:57,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:57,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:57,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:57,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:57,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:57,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:57,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:57,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:57,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 03:49:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:57,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:57,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:57,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:57,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:57,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:57,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:57,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:57,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:57,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:57,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:57,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:57,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:49:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:57,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:57,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:57,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:57,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:57,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:57,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:57,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:57,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:57,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 03:49:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:57,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:57,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:57,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:57,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:57,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:57,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:57,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:57,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:57,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:57,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:57,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:57,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 03:49:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:57,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:57,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:57,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:57,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:57,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:57,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:57,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:57,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:57,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:57,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:57,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:57,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 03:49:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:57,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:57,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:57,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:57,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:57,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:57,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:57,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:57,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:57,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:57,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:57,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:57,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 03:49:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:57,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:57,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:57,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:57,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:57,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:57,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:57,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:57,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:57,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:57,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:57,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:57,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 03:49:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:57,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:57,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:57,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:57,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:57,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:57,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:57,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:57,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:57,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:57,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:57,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:57,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 03:49:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:57,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:57,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:57,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:57,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:57,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:57,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:57,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:57,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:57,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:57,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:57,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:57,402 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 18 proven. 204 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-10-29 03:49:57,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1712112663] [2020-10-29 03:49:57,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:57,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-29 03:49:57,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611405783] [2020-10-29 03:49:57,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-29 03:49:57,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:57,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-29 03:49:57,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=809, Unknown=0, NotChecked=0, Total=870 [2020-10-29 03:49:57,403 INFO L87 Difference]: Start difference. First operand 139 states and 152 transitions. Second operand 30 states. [2020-10-29 03:50:00,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:50:00,090 INFO L93 Difference]: Finished difference Result 151 states and 164 transitions. [2020-10-29 03:50:00,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-29 03:50:00,091 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 102 [2020-10-29 03:50:00,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:50:00,095 INFO L225 Difference]: With dead ends: 151 [2020-10-29 03:50:00,095 INFO L226 Difference]: Without dead ends: 147 [2020-10-29 03:50:00,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=138, Invalid=1668, Unknown=0, NotChecked=0, Total=1806 [2020-10-29 03:50:00,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-29 03:50:00,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 110. [2020-10-29 03:50:00,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-29 03:50:00,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 112 transitions. [2020-10-29 03:50:00,118 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 112 transitions. Word has length 102 [2020-10-29 03:50:00,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:50:00,118 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 112 transitions. [2020-10-29 03:50:00,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-29 03:50:00,118 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 112 transitions. [2020-10-29 03:50:00,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-29 03:50:00,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:50:00,119 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:50:00,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-29 03:50:00,120 INFO L429 AbstractCegarLoop]: === Iteration 48 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:50:00,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:50:00,120 INFO L82 PathProgramCache]: Analyzing trace with hash -129697086, now seen corresponding path program 42 times [2020-10-29 03:50:00,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:50:00,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671025627] [2020-10-29 03:50:00,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:50:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:00,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:00,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-29 03:50:05,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:50:05,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 03:50:05,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 03:50:05,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:50:05,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 03:50:05,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:50:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:50:05,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:50:05,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:50:05,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:50:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 03:50:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:50:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 03:50:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:05,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:50:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 03:50:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:05,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 03:50:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:05,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 03:50:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 03:50:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-29 03:50:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,355 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 20 proven. 55 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2020-10-29 03:50:05,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671025627] [2020-10-29 03:50:05,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:50:05,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 03:50:05,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053886283] [2020-10-29 03:50:05,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 03:50:05,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:50:05,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 03:50:05,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:50:05,357 INFO L87 Difference]: Start difference. First operand 110 states and 112 transitions. Second operand 14 states. [2020-10-29 03:50:05,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:50:05,589 INFO L93 Difference]: Finished difference Result 204 states and 208 transitions. [2020-10-29 03:50:05,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 03:50:05,590 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 107 [2020-10-29 03:50:05,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:50:05,591 INFO L225 Difference]: With dead ends: 204 [2020-10-29 03:50:05,591 INFO L226 Difference]: Without dead ends: 111 [2020-10-29 03:50:05,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:50:05,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-29 03:50:05,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-10-29 03:50:05,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-29 03:50:05,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 113 transitions. [2020-10-29 03:50:05,617 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 113 transitions. Word has length 107 [2020-10-29 03:50:05,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:50:05,617 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 113 transitions. [2020-10-29 03:50:05,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 03:50:05,618 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 113 transitions. [2020-10-29 03:50:05,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-29 03:50:05,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:50:05,619 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:50:05,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-29 03:50:05,619 INFO L429 AbstractCegarLoop]: === Iteration 49 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:50:05,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:50:05,619 INFO L82 PathProgramCache]: Analyzing trace with hash -935682316, now seen corresponding path program 43 times [2020-10-29 03:50:05,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:50:05,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96938716] [2020-10-29 03:50:05,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:50:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 03:50:10,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:50:10,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 03:50:10,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 03:50:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 03:50:10,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 03:50:10,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:50:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:50:10,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:10,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:50:10,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 03:50:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:10,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:50:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:10,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 03:50:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:10,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:50:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:10,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 03:50:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:10,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 03:50:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:10,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 03:50:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:10,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 03:50:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:10,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 03:50:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:10,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 03:50:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:10,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,873 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 20 proven. 55 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2020-10-29 03:50:10,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96938716] [2020-10-29 03:50:10,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:50:10,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 03:50:10,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114763685] [2020-10-29 03:50:10,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 03:50:10,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:50:10,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 03:50:10,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:50:10,876 INFO L87 Difference]: Start difference. First operand 111 states and 113 transitions. Second operand 14 states. [2020-10-29 03:50:11,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:50:11,215 INFO L93 Difference]: Finished difference Result 197 states and 201 transitions. [2020-10-29 03:50:11,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 03:50:11,216 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 108 [2020-10-29 03:50:11,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:50:11,218 INFO L225 Difference]: With dead ends: 197 [2020-10-29 03:50:11,218 INFO L226 Difference]: Without dead ends: 116 [2020-10-29 03:50:11,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:50:11,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-29 03:50:11,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 112. [2020-10-29 03:50:11,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-29 03:50:11,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 114 transitions. [2020-10-29 03:50:11,239 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 114 transitions. Word has length 108 [2020-10-29 03:50:11,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:50:11,240 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 114 transitions. [2020-10-29 03:50:11,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 03:50:11,240 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 114 transitions. [2020-10-29 03:50:11,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-29 03:50:11,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:50:11,241 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:50:11,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-29 03:50:11,241 INFO L429 AbstractCegarLoop]: === Iteration 50 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:50:11,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:50:11,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1792849183, now seen corresponding path program 44 times [2020-10-29 03:50:11,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:50:11,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16574520] [2020-10-29 03:50:11,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:50:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:11,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:11,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 03:50:16,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:50:16,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 03:50:16,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 03:50:16,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 03:50:16,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 03:50:16,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:50:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:50:16,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:50:16,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:50:16,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:50:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:16,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 03:50:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:16,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:50:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:16,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 03:50:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:16,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 03:50:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:16,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 03:50:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:50:16,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 03:50:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:16,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 03:50:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:16,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 03:50:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:16,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 03:50:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:16,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,517 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 20 proven. 66 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2020-10-29 03:50:16,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16574520] [2020-10-29 03:50:16,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:50:16,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 03:50:16,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347193256] [2020-10-29 03:50:16,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 03:50:16,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:50:16,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 03:50:16,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-29 03:50:16,519 INFO L87 Difference]: Start difference. First operand 112 states and 114 transitions. Second operand 15 states. [2020-10-29 03:50:16,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:50:16,898 INFO L93 Difference]: Finished difference Result 215 states and 222 transitions. [2020-10-29 03:50:16,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 03:50:16,900 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-29 03:50:16,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:50:16,901 INFO L225 Difference]: With dead ends: 215 [2020-10-29 03:50:16,901 INFO L226 Difference]: Without dead ends: 121 [2020-10-29 03:50:16,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-29 03:50:16,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-29 03:50:16,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 114. [2020-10-29 03:50:16,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-29 03:50:16,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 116 transitions. [2020-10-29 03:50:16,921 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 116 transitions. Word has length 109 [2020-10-29 03:50:16,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:50:16,922 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 116 transitions. [2020-10-29 03:50:16,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 03:50:16,922 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 116 transitions. [2020-10-29 03:50:16,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-29 03:50:16,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:50:16,923 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:50:16,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-29 03:50:16,923 INFO L429 AbstractCegarLoop]: === Iteration 51 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:50:16,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:50:16,923 INFO L82 PathProgramCache]: Analyzing trace with hash -539053278, now seen corresponding path program 45 times [2020-10-29 03:50:16,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:50:16,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242368051] [2020-10-29 03:50:16,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:50:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:17,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:21,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:21,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 03:50:21,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:50:21,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-29 03:50:21,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:21,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:21,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 03:50:21,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:50:21,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 03:50:21,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:50:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:50:22,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:50:22,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:50:22,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:50:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 03:50:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:50:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 03:50:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 03:50:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 03:50:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:50:22,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 03:50:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 03:50:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-29 03:50:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-29 03:50:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,222 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 20 proven. 78 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2020-10-29 03:50:22,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [242368051] [2020-10-29 03:50:22,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:50:22,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 03:50:22,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733541844] [2020-10-29 03:50:22,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 03:50:22,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:50:22,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 03:50:22,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-29 03:50:22,224 INFO L87 Difference]: Start difference. First operand 114 states and 116 transitions. Second operand 16 states. [2020-10-29 03:50:22,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:50:22,428 INFO L93 Difference]: Finished difference Result 210 states and 214 transitions. [2020-10-29 03:50:22,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 03:50:22,429 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 111 [2020-10-29 03:50:22,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:50:22,431 INFO L225 Difference]: With dead ends: 210 [2020-10-29 03:50:22,431 INFO L226 Difference]: Without dead ends: 115 [2020-10-29 03:50:22,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-29 03:50:22,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-29 03:50:22,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-10-29 03:50:22,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-29 03:50:22,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 117 transitions. [2020-10-29 03:50:22,453 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 117 transitions. Word has length 111 [2020-10-29 03:50:22,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:50:22,453 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 117 transitions. [2020-10-29 03:50:22,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 03:50:22,453 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 117 transitions. [2020-10-29 03:50:22,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-29 03:50:22,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:50:22,454 INFO L422 BasicCegarLoop]: trace histogram [13, 12, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:50:22,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-29 03:50:22,454 INFO L429 AbstractCegarLoop]: === Iteration 52 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:50:22,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:50:22,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1222447532, now seen corresponding path program 46 times [2020-10-29 03:50:22,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:50:22,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937386593] [2020-10-29 03:50:22,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:50:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-29 03:50:27,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:50:27,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 03:50:27,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 03:50:27,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 03:50:27,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 03:50:27,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:50:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:50:27,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:50:27,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:50:27,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 03:50:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:50:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 03:50:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:50:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:27,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 03:50:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 03:50:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 03:50:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 03:50:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 03:50:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 03:50:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 20 proven. 78 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2020-10-29 03:50:27,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [937386593] [2020-10-29 03:50:27,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:50:27,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 03:50:27,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524735045] [2020-10-29 03:50:27,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 03:50:27,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:50:27,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 03:50:27,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-29 03:50:27,749 INFO L87 Difference]: Start difference. First operand 115 states and 117 transitions. Second operand 16 states. [2020-10-29 03:50:28,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:50:28,214 INFO L93 Difference]: Finished difference Result 207 states and 213 transitions. [2020-10-29 03:50:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 03:50:28,216 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 112 [2020-10-29 03:50:28,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:50:28,217 INFO L225 Difference]: With dead ends: 207 [2020-10-29 03:50:28,217 INFO L226 Difference]: Without dead ends: 126 [2020-10-29 03:50:28,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-29 03:50:28,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-29 03:50:28,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 116. [2020-10-29 03:50:28,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-29 03:50:28,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 118 transitions. [2020-10-29 03:50:28,245 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 118 transitions. Word has length 112 [2020-10-29 03:50:28,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:50:28,245 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 118 transitions. [2020-10-29 03:50:28,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 03:50:28,245 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 118 transitions. [2020-10-29 03:50:28,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-29 03:50:28,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:50:28,246 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:50:28,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-29 03:50:28,246 INFO L429 AbstractCegarLoop]: === Iteration 53 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:50:28,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:50:28,247 INFO L82 PathProgramCache]: Analyzing trace with hash -2092636287, now seen corresponding path program 47 times [2020-10-29 03:50:28,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:50:28,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755849543] [2020-10-29 03:50:28,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:50:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:28,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:28,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:33,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:33,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 03:50:33,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:50:33,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 03:50:33,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:33,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 03:50:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 03:50:33,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 03:50:33,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:33,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:50:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:33,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:33,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:33,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:50:33,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:33,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:50:33,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:33,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:33,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:33,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:50:33,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:33,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:33,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:50:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:33,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:33,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:33,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:33,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:33,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:33,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:33,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:33,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:33,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:33,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:33,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:33,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 03:50:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:33,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:33,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:33,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:33,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:33,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:33,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:33,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:33,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:33,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:50:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:33,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:33,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:33,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:33,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:33,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:50:33,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:33,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:33,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:33,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:33,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:33,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:33,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 03:50:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:33,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:33,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:33,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:33,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:33,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:33,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:33,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:33,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:33,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:33,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:33,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:33,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 03:50:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:33,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:33,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:33,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:33,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:33,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:33,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:33,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:33,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:33,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:33,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:33,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:33,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 03:50:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:33,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:33,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:33,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:33,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:33,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:33,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:33,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:33,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:33,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:33,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:33,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:33,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 03:50:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:33,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:33,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:33,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:33,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:33,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:33,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:33,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:33,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:33,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:33,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:33,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:33,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 03:50:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:33,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:33,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:33,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:33,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:33,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:33,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:33,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:33,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:33,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:33,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:33,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:33,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 03:50:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:33,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:33,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:33,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:33,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:33,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:33,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:33,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:33,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:33,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:33,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:33,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:33,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-29 03:50:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:33,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:33,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:33,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:33,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:33,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:33,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:33,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:33,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:33,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:33,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:33,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:33,581 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 20 proven. 91 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2020-10-29 03:50:33,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755849543] [2020-10-29 03:50:33,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:50:33,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 03:50:33,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938969435] [2020-10-29 03:50:33,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 03:50:33,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:50:33,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 03:50:33,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-29 03:50:33,583 INFO L87 Difference]: Start difference. First operand 116 states and 118 transitions. Second operand 17 states. [2020-10-29 03:50:34,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:50:34,017 INFO L93 Difference]: Finished difference Result 227 states and 236 transitions. [2020-10-29 03:50:34,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 03:50:34,019 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 113 [2020-10-29 03:50:34,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:50:34,020 INFO L225 Difference]: With dead ends: 227 [2020-10-29 03:50:34,020 INFO L226 Difference]: Without dead ends: 131 [2020-10-29 03:50:34,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-29 03:50:34,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-29 03:50:34,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 118. [2020-10-29 03:50:34,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-29 03:50:34,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 120 transitions. [2020-10-29 03:50:34,042 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 120 transitions. Word has length 113 [2020-10-29 03:50:34,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:50:34,042 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 120 transitions. [2020-10-29 03:50:34,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 03:50:34,042 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 120 transitions. [2020-10-29 03:50:34,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-29 03:50:34,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:50:34,043 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:50:34,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-29 03:50:34,043 INFO L429 AbstractCegarLoop]: === Iteration 54 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:50:34,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:50:34,044 INFO L82 PathProgramCache]: Analyzing trace with hash 143045506, now seen corresponding path program 48 times [2020-10-29 03:50:34,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:50:34,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1872149325] [2020-10-29 03:50:34,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:50:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:34,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:34,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:39,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:39,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 03:50:39,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:50:39,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-29 03:50:39,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:39,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:39,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 03:50:39,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:50:39,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 03:50:39,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:39,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:50:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:39,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:39,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:39,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:50:39,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:39,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:50:39,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:39,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:39,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:39,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:50:39,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:39,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:39,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:50:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:39,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:39,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:39,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:39,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:39,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:39,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:39,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:39,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:39,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:39,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:39,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:39,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 03:50:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:39,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:39,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:39,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:39,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:39,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:50:39,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:39,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:39,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:39,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:39,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:39,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:39,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:50:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:39,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:39,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:39,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:39,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:39,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:39,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:39,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:39,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:39,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:39,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:39,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:39,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 03:50:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:39,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:39,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:39,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:39,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:39,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:39,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:39,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:39,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:39,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:39,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:39,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:39,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 03:50:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:39,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:39,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:39,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:39,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:39,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:39,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:39,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:39,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:39,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:39,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:39,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:39,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 03:50:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:39,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:39,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:39,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:39,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:39,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:39,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:39,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:39,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:39,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:39,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:39,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:39,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 03:50:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:39,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:39,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:39,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:39,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:39,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:39,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:39,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:39,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:39,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:39,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:39,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:39,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 03:50:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:39,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:39,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:39,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:39,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:39,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:39,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:39,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:39,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:39,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 03:50:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:39,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:39,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:39,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:39,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:39,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:39,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:39,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:39,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:39,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:39,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:39,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:39,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 03:50:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:39,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:39,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:39,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:39,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:39,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:39,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:39,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:39,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:39,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:39,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:39,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:39,408 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 20 proven. 105 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2020-10-29 03:50:39,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1872149325] [2020-10-29 03:50:39,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:50:39,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 03:50:39,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295543903] [2020-10-29 03:50:39,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 03:50:39,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:50:39,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 03:50:39,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:50:39,410 INFO L87 Difference]: Start difference. First operand 118 states and 120 transitions. Second operand 18 states. [2020-10-29 03:50:39,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:50:39,736 INFO L93 Difference]: Finished difference Result 216 states and 220 transitions. [2020-10-29 03:50:39,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 03:50:39,737 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 115 [2020-10-29 03:50:39,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:50:39,739 INFO L225 Difference]: With dead ends: 216 [2020-10-29 03:50:39,739 INFO L226 Difference]: Without dead ends: 119 [2020-10-29 03:50:39,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:50:39,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-29 03:50:39,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-10-29 03:50:39,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-29 03:50:39,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions. [2020-10-29 03:50:39,767 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 115 [2020-10-29 03:50:39,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:50:39,767 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 121 transitions. [2020-10-29 03:50:39,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 03:50:39,767 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions. [2020-10-29 03:50:39,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 03:50:39,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:50:39,768 INFO L422 BasicCegarLoop]: trace histogram [15, 14, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:50:39,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-29 03:50:39,768 INFO L429 AbstractCegarLoop]: === Iteration 55 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:50:39,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:50:39,769 INFO L82 PathProgramCache]: Analyzing trace with hash -537524812, now seen corresponding path program 49 times [2020-10-29 03:50:39,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:50:39,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494238211] [2020-10-29 03:50:39,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:50:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:39,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:39,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:44,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:44,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-29 03:50:44,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:50:44,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-29 03:50:44,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:44,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 03:50:44,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-29 03:50:44,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 03:50:44,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:45,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:50:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:45,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:45,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:45,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:50:45,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:45,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:50:45,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:45,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:45,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:45,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:50:45,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:45,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:45,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 03:50:45,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:45,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:45,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:45,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:45,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:45,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:45,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:45,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:45,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:45,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:45,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:45,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:45,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:50:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:45,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:45,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:45,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:45,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:45,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:45,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:45,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:45,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:45,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:45,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:45,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 03:50:45,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 03:50:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:45,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:45,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:45,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:45,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:45,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:45,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:45,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:45,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:45,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 03:50:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:45,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:45,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:45,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:45,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:45,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:45,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:45,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:45,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:45,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:45,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:45,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:45,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 03:50:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:45,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:45,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:45,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:45,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:45,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:45,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:45,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:45,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:45,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:45,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:45,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:45,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 03:50:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:45,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:45,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:45,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:45,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:45,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:45,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:45,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:45,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:45,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:45,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:45,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:45,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 03:50:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:45,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:45,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:45,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:45,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:45,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:45,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:45,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:45,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:45,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:45,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:45,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:45,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 03:50:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:45,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:45,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:45,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:45,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:45,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:45,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:45,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:45,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:45,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:45,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:45,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:45,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 03:50:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:45,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:45,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:45,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:45,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:45,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:45,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:45,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:45,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:45,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:45,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:45,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:45,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 03:50:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:45,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:45,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:45,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:45,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:45,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:45,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:45,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:45,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:45,129 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 20 proven. 105 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2020-10-29 03:50:45,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [494238211] [2020-10-29 03:50:45,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:50:45,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 03:50:45,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918048082] [2020-10-29 03:50:45,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 03:50:45,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:50:45,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 03:50:45,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:50:45,130 INFO L87 Difference]: Start difference. First operand 119 states and 121 transitions. Second operand 18 states. [2020-10-29 03:50:45,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:50:45,590 INFO L93 Difference]: Finished difference Result 217 states and 225 transitions. [2020-10-29 03:50:45,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 03:50:45,591 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 116 [2020-10-29 03:50:45,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:50:45,593 INFO L225 Difference]: With dead ends: 217 [2020-10-29 03:50:45,593 INFO L226 Difference]: Without dead ends: 136 [2020-10-29 03:50:45,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:50:45,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-29 03:50:45,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 120. [2020-10-29 03:50:45,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-29 03:50:45,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 122 transitions. [2020-10-29 03:50:45,618 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 122 transitions. Word has length 116 [2020-10-29 03:50:45,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:50:45,618 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 122 transitions. [2020-10-29 03:50:45,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 03:50:45,618 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 122 transitions. [2020-10-29 03:50:45,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-29 03:50:45,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:50:45,619 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:50:45,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-29 03:50:45,619 INFO L429 AbstractCegarLoop]: === Iteration 56 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:50:45,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:50:45,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1960098849, now seen corresponding path program 50 times [2020-10-29 03:50:45,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:50:45,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936315136] [2020-10-29 03:50:45,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:50:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:45,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:45,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:50,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:50,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-29 03:50:50,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:50:50,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-29 03:50:50,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:50,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:50,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 03:50:50,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:50:50,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 03:50:50,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:50,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:50:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:50,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:50,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:50,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:50:50,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:50,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:50:50,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:50,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:50,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:50,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:50:50,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:50,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:50,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:50:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:50,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:50,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:50,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:50,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:50,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:50,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:50,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:50,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:50,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:50,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:50,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:50,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 03:50:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:50,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:50,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:50,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:50,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:50,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:50,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:50,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:50,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:50,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:50,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:50,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:50,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:50:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:50,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:50,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:50,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:50,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:50,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:50,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:50,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:50,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:50,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:50,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:50,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:50,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 03:50:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:50,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:50,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:50,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:50,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:50,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:50,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:50,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:50,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:50,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:50,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:50,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:50,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 03:50:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:50,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:50,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:50,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:50,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:50,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:50,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:50,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:50,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:50,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:50,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:50,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:50,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 03:50:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:50,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:50,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:50,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:50,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:50,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:50,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:50,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:50,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:50,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 03:50:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:50,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:50,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:50,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:50,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:50,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:50,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:50,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:50,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:50,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:50,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:50,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:50,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 03:50:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:50,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:50,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:50,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:50,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:50,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:50,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:50,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:50,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:50,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:50,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:50,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:50,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 03:50:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:50,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:50,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:50,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:50,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:50,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:50,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:50,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:50,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:50,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:50,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:50,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:50,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 03:50:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:50,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:50,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:50,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:50,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:50,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:50,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:50,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:50,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:50,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:50,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:50,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:50,994 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 20 proven. 120 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2020-10-29 03:50:50,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936315136] [2020-10-29 03:50:50,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:50:50,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 03:50:50,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465615733] [2020-10-29 03:50:50,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 03:50:50,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:50:50,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 03:50:50,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2020-10-29 03:50:50,996 INFO L87 Difference]: Start difference. First operand 120 states and 122 transitions. Second operand 19 states. [2020-10-29 03:50:51,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:50:51,345 INFO L93 Difference]: Finished difference Result 219 states and 223 transitions. [2020-10-29 03:50:51,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 03:50:51,346 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 117 [2020-10-29 03:50:51,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:50:51,347 INFO L225 Difference]: With dead ends: 219 [2020-10-29 03:50:51,347 INFO L226 Difference]: Without dead ends: 121 [2020-10-29 03:50:51,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2020-10-29 03:50:51,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-29 03:50:51,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2020-10-29 03:50:51,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-29 03:50:51,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 123 transitions. [2020-10-29 03:50:51,370 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 123 transitions. Word has length 117 [2020-10-29 03:50:51,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:50:51,370 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 123 transitions. [2020-10-29 03:50:51,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 03:50:51,370 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 123 transitions. [2020-10-29 03:50:51,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-29 03:50:51,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:50:51,371 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:50:51,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-10-29 03:50:51,371 INFO L429 AbstractCegarLoop]: === Iteration 57 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:50:51,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:50:51,371 INFO L82 PathProgramCache]: Analyzing trace with hash 767052243, now seen corresponding path program 51 times [2020-10-29 03:50:51,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:50:51,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654916556] [2020-10-29 03:50:51,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:50:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:51,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:51,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking...