/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=DEEPEST --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/eca-rers2012/Problem16_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 18:38:40,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 18:38:40,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 18:38:40,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 18:38:40,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 18:38:40,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 18:38:40,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 18:38:40,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 18:38:40,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 18:38:40,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 18:38:40,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 18:38:40,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 18:38:40,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 18:38:40,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 18:38:40,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 18:38:40,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 18:38:40,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 18:38:40,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 18:38:40,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 18:38:40,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 18:38:40,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 18:38:40,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 18:38:40,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 18:38:40,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 18:38:40,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 18:38:40,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 18:38:40,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 18:38:40,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 18:38:40,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 18:38:40,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 18:38:40,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 18:38:40,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 18:38:40,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 18:38:40,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 18:38:40,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 18:38:40,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 18:38:40,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 18:38:40,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 18:38:40,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 18:38:40,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 18:38:40,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 18:38:40,736 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 [2020-10-27 18:38:40,791 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 18:38:40,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 18:38:40,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 18:38:40,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 18:38:40,796 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 18:38:40,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 18:38:40,796 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 18:38:40,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 18:38:40,797 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 18:38:40,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 18:38:40,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 18:38:40,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 18:38:40,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 18:38:40,799 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 18:38:40,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 18:38:40,799 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 18:38:40,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 18:38:40,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 18:38:40,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 18:38:40,800 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 18:38:40,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 18:38:40,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 18:38:40,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 18:38:40,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 18:38:40,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 18:38:40,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 18:38:40,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 18:38:40,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 18:38:40,802 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 18:38:40,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 18:38:41,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 18:38:41,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 18:38:41,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 18:38:41,293 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 18:38:41,294 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 18:38:41,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label20.c [2020-10-27 18:38:41,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b6145c95/6eb12eaa8c384949bcfdf816d3b4d630/FLAG576ebeb23 [2020-10-27 18:38:42,229 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 18:38:42,229 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label20.c [2020-10-27 18:38:42,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b6145c95/6eb12eaa8c384949bcfdf816d3b4d630/FLAG576ebeb23 [2020-10-27 18:38:42,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b6145c95/6eb12eaa8c384949bcfdf816d3b4d630 [2020-10-27 18:38:42,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 18:38:42,435 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 18:38:42,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 18:38:42,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 18:38:42,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 18:38:42,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:38:42" (1/1) ... [2020-10-27 18:38:42,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a6153b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:38:42, skipping insertion in model container [2020-10-27 18:38:42,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:38:42" (1/1) ... [2020-10-27 18:38:42,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 18:38:42,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 18:38:43,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 18:38:43,357 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 18:38:43,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 18:38:43,583 INFO L208 MainTranslator]: Completed translation [2020-10-27 18:38:43,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:38:43 WrapperNode [2020-10-27 18:38:43,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 18:38:43,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 18:38:43,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 18:38:43,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 18:38:43,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:38:43" (1/1) ... [2020-10-27 18:38:43,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:38:43" (1/1) ... [2020-10-27 18:38:43,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:38:43" (1/1) ... [2020-10-27 18:38:43,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:38:43" (1/1) ... [2020-10-27 18:38:43,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:38:43" (1/1) ... [2020-10-27 18:38:43,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:38:43" (1/1) ... [2020-10-27 18:38:43,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:38:43" (1/1) ... [2020-10-27 18:38:43,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 18:38:43,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 18:38:43,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 18:38:43,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 18:38:43,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:38:43" (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 [2020-10-27 18:38:43,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 18:38:43,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 18:38:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 18:38:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 18:38:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-27 18:38:43,881 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 18:38:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 18:38:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-27 18:38:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 18:38:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 18:38:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 18:38:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 18:38:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 18:38:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 18:38:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 18:38:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 18:38:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 18:38:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 18:38:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 18:38:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 18:38:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 18:38:46,623 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 18:38:46,626 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 18:38:46,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:38:46 BoogieIcfgContainer [2020-10-27 18:38:46,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 18:38:46,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 18:38:46,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 18:38:46,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 18:38:46,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 06:38:42" (1/3) ... [2020-10-27 18:38:46,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac6dc1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:38:46, skipping insertion in model container [2020-10-27 18:38:46,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:38:43" (2/3) ... [2020-10-27 18:38:46,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac6dc1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:38:46, skipping insertion in model container [2020-10-27 18:38:46,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:38:46" (3/3) ... [2020-10-27 18:38:46,641 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label20.c [2020-10-27 18:38:46,653 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 18:38:46,660 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 18:38:46,673 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 18:38:46,714 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 18:38:46,715 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 18:38:46,715 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 18:38:46,715 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 18:38:46,715 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 18:38:46,715 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 18:38:46,715 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 18:38:46,715 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 18:38:46,758 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-27 18:38:46,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-27 18:38:46,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:38:46,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:38:46,766 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:38:46,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:38:46,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1257391060, now seen corresponding path program 1 times [2020-10-27 18:38:46,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:38:46,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713495488] [2020-10-27 18:38:46,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:38:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:38:47,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:38:47,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:38:47,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 18:38:47,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:38:47,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 502 [2020-10-27 18:38:47,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:38:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 18:38:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 18:38:47,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 18:38:47,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 18:38:47,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:38:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:38:47,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:38:47,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:38:47,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:38:47,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:38:47,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 18:38:47,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:38:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:38:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:38:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 18:38:47,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:38:47,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:38:47,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1713495488] [2020-10-27 18:38:47,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 18:38:47,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 18:38:47,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538818160] [2020-10-27 18:38:47,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 18:38:47,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:38:47,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 18:38:47,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 18:38:47,636 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 4 states. [2020-10-27 18:38:52,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:38:52,317 INFO L93 Difference]: Finished difference Result 1174 states and 2170 transitions. [2020-10-27 18:38:52,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:38:52,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-27 18:38:52,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:38:52,341 INFO L225 Difference]: With dead ends: 1174 [2020-10-27 18:38:52,341 INFO L226 Difference]: Without dead ends: 697 [2020-10-27 18:38:52,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:38:52,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-27 18:38:52,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 693. [2020-10-27 18:38:52,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-27 18:38:52,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1015 transitions. [2020-10-27 18:38:52,506 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1015 transitions. Word has length 31 [2020-10-27 18:38:52,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:38:52,507 INFO L481 AbstractCegarLoop]: Abstraction has 693 states and 1015 transitions. [2020-10-27 18:38:52,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 18:38:52,507 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1015 transitions. [2020-10-27 18:38:52,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-27 18:38:52,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:38:52,516 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:38:52,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 18:38:52,516 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:38:52,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:38:52,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1711632939, now seen corresponding path program 1 times [2020-10-27 18:38:52,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:38:52,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060402921] [2020-10-27 18:38:52,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:38:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:38:52,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:38:53,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:38:53,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:38:53,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-27 18:38:53,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 18:38:53,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1380 [2020-10-27 18:38:53,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:38:53,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:38:53,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-27 18:38:53,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 18:38:53,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:38:54,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:38:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:38:54,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:38:54,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:38:54,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:38:54,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:38:54,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 18:38:54,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:38:54,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:38:54,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:38:54,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:38:54,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:38:54,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:38:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:38:54,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:38:54,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:38:54,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 18:38:54,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:38:54,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-27 18:38:54,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:38:54,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:38:54,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:38:54,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 18:38:54,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:38:54,344 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:38:54,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060402921] [2020-10-27 18:38:54,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:38:54,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:38:54,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559798828] [2020-10-27 18:38:54,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:38:54,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:38:54,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:38:54,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:38:54,355 INFO L87 Difference]: Start difference. First operand 693 states and 1015 transitions. Second operand 5 states. [2020-10-27 18:38:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:38:59,280 INFO L93 Difference]: Finished difference Result 1726 states and 2651 transitions. [2020-10-27 18:38:59,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:38:59,281 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-10-27 18:38:59,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:38:59,290 INFO L225 Difference]: With dead ends: 1726 [2020-10-27 18:38:59,290 INFO L226 Difference]: Without dead ends: 1039 [2020-10-27 18:38:59,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:38:59,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2020-10-27 18:38:59,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1035. [2020-10-27 18:38:59,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2020-10-27 18:38:59,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1430 transitions. [2020-10-27 18:38:59,339 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1430 transitions. Word has length 107 [2020-10-27 18:38:59,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:38:59,339 INFO L481 AbstractCegarLoop]: Abstraction has 1035 states and 1430 transitions. [2020-10-27 18:38:59,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:38:59,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1430 transitions. [2020-10-27 18:38:59,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-27 18:38:59,344 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:38:59,344 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:38:59,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 18:38:59,344 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:38:59,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:38:59,345 INFO L82 PathProgramCache]: Analyzing trace with hash 2078079833, now seen corresponding path program 1 times [2020-10-27 18:38:59,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:38:59,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132727515] [2020-10-27 18:38:59,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:38:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:38:59,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:38:59,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:01,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:01,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-27 18:39:01,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 18:39:01,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1616 [2020-10-27 18:39:01,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:01,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:39:01,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-27 18:39:01,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 18:39:01,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:01,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:39:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:01,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:01,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:01,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:39:01,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:01,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 18:39:01,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:01,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:39:01,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:01,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:39:01,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:01,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:39:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:01,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:01,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:01,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 18:39:01,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:01,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-27 18:39:01,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:01,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:39:01,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:01,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-27 18:39:01,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:01,438 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:39:01,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132727515] [2020-10-27 18:39:01,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:39:01,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:39:01,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504419672] [2020-10-27 18:39:01,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:39:01,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:39:01,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:39:01,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:39:01,441 INFO L87 Difference]: Start difference. First operand 1035 states and 1430 transitions. Second operand 5 states. [2020-10-27 18:39:06,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:39:06,393 INFO L93 Difference]: Finished difference Result 2410 states and 3482 transitions. [2020-10-27 18:39:06,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:39:06,394 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-10-27 18:39:06,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:39:06,404 INFO L225 Difference]: With dead ends: 2410 [2020-10-27 18:39:06,405 INFO L226 Difference]: Without dead ends: 1381 [2020-10-27 18:39:06,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:39:06,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2020-10-27 18:39:06,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1377. [2020-10-27 18:39:06,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1377 states. [2020-10-27 18:39:06,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 1850 transitions. [2020-10-27 18:39:06,456 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 1850 transitions. Word has length 160 [2020-10-27 18:39:06,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:39:06,457 INFO L481 AbstractCegarLoop]: Abstraction has 1377 states and 1850 transitions. [2020-10-27 18:39:06,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:39:06,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1850 transitions. [2020-10-27 18:39:06,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-27 18:39:06,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:39:06,463 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:39:06,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 18:39:06,464 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:39:06,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:39:06,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1648903130, now seen corresponding path program 1 times [2020-10-27 18:39:06,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:39:06,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469583779] [2020-10-27 18:39:06,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:39:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:06,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:06,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:07,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:07,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:08,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:11,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:11,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-10-27 18:39:11,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:39:11,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4678 [2020-10-27 18:39:11,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:11,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:39:11,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-10-27 18:39:11,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 18:39:11,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:11,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:39:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:11,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:11,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:11,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:39:11,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:11,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 18:39:11,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:11,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:39:11,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:11,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:39:11,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:11,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:39:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:11,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:11,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:11,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 18:39:11,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:11,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 18:39:11,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:11,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:39:11,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:11,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:39:11,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:11,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 18:39:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:11,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:11,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:11,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:39:11,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:11,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-27 18:39:11,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:11,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:39:11,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:11,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-27 18:39:11,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:11,582 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-27 18:39:11,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [469583779] [2020-10-27 18:39:11,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:39:11,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:39:11,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118592773] [2020-10-27 18:39:11,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:39:11,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:39:11,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:39:11,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:39:11,585 INFO L87 Difference]: Start difference. First operand 1377 states and 1850 transitions. Second operand 5 states. [2020-10-27 18:39:16,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:39:16,496 INFO L93 Difference]: Finished difference Result 3436 states and 4747 transitions. [2020-10-27 18:39:16,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:39:16,498 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2020-10-27 18:39:16,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:39:16,511 INFO L225 Difference]: With dead ends: 3436 [2020-10-27 18:39:16,511 INFO L226 Difference]: Without dead ends: 2065 [2020-10-27 18:39:16,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:39:16,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2065 states. [2020-10-27 18:39:16,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2065 to 2061. [2020-10-27 18:39:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2061 states. [2020-10-27 18:39:16,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2061 states to 2061 states and 2767 transitions. [2020-10-27 18:39:16,583 INFO L78 Accepts]: Start accepts. Automaton has 2061 states and 2767 transitions. Word has length 217 [2020-10-27 18:39:16,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:39:16,584 INFO L481 AbstractCegarLoop]: Abstraction has 2061 states and 2767 transitions. [2020-10-27 18:39:16,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:39:16,584 INFO L276 IsEmpty]: Start isEmpty. Operand 2061 states and 2767 transitions. [2020-10-27 18:39:16,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-10-27 18:39:16,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:39:16,591 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:39:16,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 18:39:16,592 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:39:16,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:39:16,592 INFO L82 PathProgramCache]: Analyzing trace with hash -739074861, now seen corresponding path program 1 times [2020-10-27 18:39:16,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:39:16,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381516060] [2020-10-27 18:39:16,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:39:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:16,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:16,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:16,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:17,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:19,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:20,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:21,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:21,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 305 [2020-10-27 18:39:21,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 18:39:21,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 18:39:21,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:21,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:39:21,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-10-27 18:39:21,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-27 18:39:21,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:21,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:39:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:21,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:21,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:21,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:39:21,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:21,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 18:39:21,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:21,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:39:21,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:21,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:39:21,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:21,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:39:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:21,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:21,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:21,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 18:39:21,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:21,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 18:39:21,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:39:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:21,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:39:21,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:21,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 18:39:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:21,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:21,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:21,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:39:21,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:21,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-27 18:39:21,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:21,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:39:21,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:21,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-27 18:39:21,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:22,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-27 18:39:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:22,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:22,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:22,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 18:39:22,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:22,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-27 18:39:22,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:22,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:39:22,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:39:22,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-27 18:39:22,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:22,327 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 212 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-27 18:39:22,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381516060] [2020-10-27 18:39:22,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:39:22,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:39:22,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353201255] [2020-10-27 18:39:22,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:39:22,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:39:22,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:39:22,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:39:22,330 INFO L87 Difference]: Start difference. First operand 2061 states and 2767 transitions. Second operand 7 states. [2020-10-27 18:39:28,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:39:28,287 INFO L93 Difference]: Finished difference Result 4844 states and 6744 transitions. [2020-10-27 18:39:28,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 18:39:28,289 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 289 [2020-10-27 18:39:28,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:39:28,306 INFO L225 Difference]: With dead ends: 4844 [2020-10-27 18:39:28,306 INFO L226 Difference]: Without dead ends: 2789 [2020-10-27 18:39:28,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-27 18:39:28,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2020-10-27 18:39:28,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2433. [2020-10-27 18:39:28,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2433 states. [2020-10-27 18:39:28,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2433 states to 2433 states and 3217 transitions. [2020-10-27 18:39:28,397 INFO L78 Accepts]: Start accepts. Automaton has 2433 states and 3217 transitions. Word has length 289 [2020-10-27 18:39:28,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:39:28,398 INFO L481 AbstractCegarLoop]: Abstraction has 2433 states and 3217 transitions. [2020-10-27 18:39:28,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:39:28,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2433 states and 3217 transitions. [2020-10-27 18:39:28,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-27 18:39:28,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:39:28,404 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:39:28,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 18:39:28,405 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:39:28,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:39:28,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1503241467, now seen corresponding path program 1 times [2020-10-27 18:39:28,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:39:28,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039869689] [2020-10-27 18:39:28,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:39:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:28,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:28,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:28,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:29,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:30,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:33,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:33,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:33,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-27 18:39:33,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 18:39:33,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-27 18:39:33,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:33,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:39:33,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-10-27 18:39:33,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-27 18:39:33,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:33,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:39:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:33,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:33,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:33,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:39:33,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:33,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 18:39:33,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:39:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:39:33,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:33,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:39:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:33,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:33,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:33,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 18:39:33,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:33,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 18:39:33,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:33,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:39:33,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:33,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:39:33,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:33,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 18:39:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:33,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:33,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:33,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:39:33,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:33,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-27 18:39:33,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:33,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:39:33,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:33,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-27 18:39:33,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:33,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-27 18:39:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:33,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:34,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:34,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-27 18:39:34,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:34,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-27 18:39:34,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:34,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:39:34,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:39:34,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 18:39:34,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:39:34,411 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 236 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-27 18:39:34,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039869689] [2020-10-27 18:39:34,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:39:34,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:39:34,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195105588] [2020-10-27 18:39:34,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:39:34,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:39:34,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:39:34,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:39:34,415 INFO L87 Difference]: Start difference. First operand 2433 states and 3217 transitions. Second operand 7 states. [2020-10-27 18:39:39,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:39:39,899 INFO L93 Difference]: Finished difference Result 7329 states and 9894 transitions. [2020-10-27 18:39:39,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 18:39:39,901 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 309 [2020-10-27 18:39:39,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:39:39,925 INFO L225 Difference]: With dead ends: 7329 [2020-10-27 18:39:39,925 INFO L226 Difference]: Without dead ends: 4902 [2020-10-27 18:39:39,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-27 18:39:39,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4902 states. [2020-10-27 18:39:40,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4902 to 4884. [2020-10-27 18:39:40,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4884 states. [2020-10-27 18:39:40,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4884 states to 4884 states and 6073 transitions. [2020-10-27 18:39:40,075 INFO L78 Accepts]: Start accepts. Automaton has 4884 states and 6073 transitions. Word has length 309 [2020-10-27 18:39:40,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:39:40,075 INFO L481 AbstractCegarLoop]: Abstraction has 4884 states and 6073 transitions. [2020-10-27 18:39:40,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:39:40,075 INFO L276 IsEmpty]: Start isEmpty. Operand 4884 states and 6073 transitions. [2020-10-27 18:39:40,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2020-10-27 18:39:40,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:39:40,091 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:39:40,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 18:39:40,091 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:39:40,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:39:40,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1207775359, now seen corresponding path program 1 times [2020-10-27 18:39:40,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:39:40,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15274267] [2020-10-27 18:39:40,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:39:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:40,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:40,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:41,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:42,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:42,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:43,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:43,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:45,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:45,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:45,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 503 [2020-10-27 18:39:45,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 18:39:45,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 18:39:45,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:45,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:39:45,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 470 [2020-10-27 18:39:45,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 18:39:45,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:45,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:39:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:45,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:45,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:45,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:39:45,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:45,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 18:39:45,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:45,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:39:45,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:45,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:39:45,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:45,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:39:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:45,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:45,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:45,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-27 18:39:45,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:45,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 18:39:45,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:45,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:39:45,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:45,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:39:45,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:45,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 18:39:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:45,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:45,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:45,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-27 18:39:45,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:45,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-27 18:39:45,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:39:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:39:45,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:45,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-27 18:39:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:45,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:45,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:45,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-27 18:39:45,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:45,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 18:39:45,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:39:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:45,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 18:39:45,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:46,163 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 72 proven. 3 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-10-27 18:39:46,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15274267] [2020-10-27 18:39:46,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:39:46,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:39:46,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712943381] [2020-10-27 18:39:46,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:39:46,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:39:46,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:39:46,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:39:46,167 INFO L87 Difference]: Start difference. First operand 4884 states and 6073 transitions. Second operand 5 states. [2020-10-27 18:39:49,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:39:49,606 INFO L93 Difference]: Finished difference Result 9456 states and 11760 transitions. [2020-10-27 18:39:49,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:39:49,608 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 487 [2020-10-27 18:39:49,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:39:49,631 INFO L225 Difference]: With dead ends: 9456 [2020-10-27 18:39:49,631 INFO L226 Difference]: Without dead ends: 4553 [2020-10-27 18:39:49,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:39:49,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4553 states. [2020-10-27 18:39:49,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4553 to 4545. [2020-10-27 18:39:49,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4545 states. [2020-10-27 18:39:49,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4545 states to 4545 states and 5619 transitions. [2020-10-27 18:39:49,777 INFO L78 Accepts]: Start accepts. Automaton has 4545 states and 5619 transitions. Word has length 487 [2020-10-27 18:39:49,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:39:49,779 INFO L481 AbstractCegarLoop]: Abstraction has 4545 states and 5619 transitions. [2020-10-27 18:39:49,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:39:49,779 INFO L276 IsEmpty]: Start isEmpty. Operand 4545 states and 5619 transitions. [2020-10-27 18:39:49,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2020-10-27 18:39:49,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:39:49,794 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:39:49,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 18:39:49,795 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:39:49,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:39:49,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1322155755, now seen corresponding path program 1 times [2020-10-27 18:39:49,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:39:49,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304288016] [2020-10-27 18:39:49,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:39:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:49,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:50,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:50,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:51,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:51,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:52,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:54,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:54,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 512 [2020-10-27 18:39:54,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 18:39:54,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5084 [2020-10-27 18:39:54,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:54,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:39:54,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 479 [2020-10-27 18:39:54,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 18:39:54,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:55,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:39:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:55,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:55,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:55,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:39:55,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:55,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 18:39:55,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:55,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:39:55,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:55,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:39:55,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:55,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:39:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:55,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:55,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:55,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-27 18:39:55,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:55,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 18:39:55,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:55,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:39:55,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:55,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:39:55,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:55,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 18:39:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:55,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:55,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:55,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-27 18:39:55,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:55,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 18:39:55,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:55,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:39:55,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:55,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:39:55,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:55,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-27 18:39:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:39:55,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:39:55,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:39:55,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-27 18:39:55,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:39:55,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 18:39:55,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:39:55,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:39:55,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:39:55,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-27 18:39:55,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:39:55,633 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 72 proven. 3 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2020-10-27 18:39:55,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304288016] [2020-10-27 18:39:55,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:39:55,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:39:55,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535796819] [2020-10-27 18:39:55,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:39:55,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:39:55,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:39:55,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:39:55,636 INFO L87 Difference]: Start difference. First operand 4545 states and 5619 transitions. Second operand 5 states. [2020-10-27 18:40:00,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:40:00,743 INFO L93 Difference]: Finished difference Result 10800 states and 13669 transitions. [2020-10-27 18:40:00,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:40:00,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 496 [2020-10-27 18:40:00,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:40:00,780 INFO L225 Difference]: With dead ends: 10800 [2020-10-27 18:40:00,780 INFO L226 Difference]: Without dead ends: 6261 [2020-10-27 18:40:00,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:40:00,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6261 states. [2020-10-27 18:40:00,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6261 to 6255. [2020-10-27 18:40:00,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6255 states. [2020-10-27 18:40:00,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6255 states to 6255 states and 7391 transitions. [2020-10-27 18:40:00,958 INFO L78 Accepts]: Start accepts. Automaton has 6255 states and 7391 transitions. Word has length 496 [2020-10-27 18:40:00,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:40:00,959 INFO L481 AbstractCegarLoop]: Abstraction has 6255 states and 7391 transitions. [2020-10-27 18:40:00,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:40:00,959 INFO L276 IsEmpty]: Start isEmpty. Operand 6255 states and 7391 transitions. [2020-10-27 18:40:00,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2020-10-27 18:40:00,979 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:40:00,980 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:40:00,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 18:40:00,980 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:40:00,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:40:00,981 INFO L82 PathProgramCache]: Analyzing trace with hash -651841466, now seen corresponding path program 1 times [2020-10-27 18:40:00,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:40:00,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258914494] [2020-10-27 18:40:00,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:40:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:01,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:01,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:01,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:02,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:02,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:03,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:06,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:06,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 551 [2020-10-27 18:40:06,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 18:40:06,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-27 18:40:06,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:06,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:40:06,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-27 18:40:06,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-27 18:40:06,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:40:06,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:40:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:06,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:06,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:06,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:40:06,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:06,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 18:40:06,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:06,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:40:06,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:40:06,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:40:06,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:06,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:40:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:06,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:06,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:06,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-27 18:40:06,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:06,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 18:40:06,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:06,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:40:06,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:40:06,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:40:06,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:06,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 18:40:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:06,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:06,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:06,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-27 18:40:06,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:06,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 18:40:06,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:06,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:40:06,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:40:06,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 18:40:06,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:06,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-27 18:40:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:06,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:06,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:06,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:40:06,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:06,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-27 18:40:06,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:06,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:40:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:40:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 18:40:06,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:06,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2020-10-27 18:40:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:06,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:06,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:06,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-27 18:40:06,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:06,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-27 18:40:06,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:06,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:40:06,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-27 18:40:06,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:40:06,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:07,143 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 273 proven. 109 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2020-10-27 18:40:07,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258914494] [2020-10-27 18:40:07,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:40:07,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:40:07,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058871449] [2020-10-27 18:40:07,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:40:07,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:40:07,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:40:07,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:40:07,146 INFO L87 Difference]: Start difference. First operand 6255 states and 7391 transitions. Second operand 7 states. [2020-10-27 18:40:15,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:40:15,581 INFO L93 Difference]: Finished difference Result 16397 states and 19830 transitions. [2020-10-27 18:40:15,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 18:40:15,582 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 533 [2020-10-27 18:40:15,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:40:15,628 INFO L225 Difference]: With dead ends: 16397 [2020-10-27 18:40:15,628 INFO L226 Difference]: Without dead ends: 10148 [2020-10-27 18:40:15,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-27 18:40:15,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10148 states. [2020-10-27 18:40:15,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10148 to 9695. [2020-10-27 18:40:15,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9695 states. [2020-10-27 18:40:15,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9695 states to 9695 states and 11156 transitions. [2020-10-27 18:40:15,932 INFO L78 Accepts]: Start accepts. Automaton has 9695 states and 11156 transitions. Word has length 533 [2020-10-27 18:40:15,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:40:15,933 INFO L481 AbstractCegarLoop]: Abstraction has 9695 states and 11156 transitions. [2020-10-27 18:40:15,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:40:15,934 INFO L276 IsEmpty]: Start isEmpty. Operand 9695 states and 11156 transitions. [2020-10-27 18:40:15,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2020-10-27 18:40:15,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:40:15,954 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:40:15,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 18:40:15,954 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:40:15,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:40:15,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1308732482, now seen corresponding path program 1 times [2020-10-27 18:40:15,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:40:15,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [799023131] [2020-10-27 18:40:15,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:40:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:16,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:16,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:16,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:16,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:17,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:20,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:21,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:21,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 612 [2020-10-27 18:40:21,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 18:40:21,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-27 18:40:21,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:21,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:40:21,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 376 [2020-10-27 18:40:21,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 18:40:21,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:21,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:40:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:21,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:21,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:21,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:40:21,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:21,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:40:21,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:21,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:40:21,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:40:21,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:40:21,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:21,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:40:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:21,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:21,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:21,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-27 18:40:21,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:21,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 18:40:21,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:21,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:40:21,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:40:21,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:40:21,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:21,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 18:40:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:21,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:21,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:21,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-27 18:40:21,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:21,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-27 18:40:21,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:21,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:40:21,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:40:21,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-27 18:40:21,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:21,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-27 18:40:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:21,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:21,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:21,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-27 18:40:21,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:21,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-27 18:40:21,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:21,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:40:21,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:40:21,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 18:40:21,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:21,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2020-10-27 18:40:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:21,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:21,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:21,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 18:40:21,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:21,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-27 18:40:21,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:40:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-27 18:40:21,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:40:21,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:22,182 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 241 proven. 70 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2020-10-27 18:40:22,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [799023131] [2020-10-27 18:40:22,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:40:22,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:40:22,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463032192] [2020-10-27 18:40:22,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:40:22,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:40:22,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:40:22,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:40:22,184 INFO L87 Difference]: Start difference. First operand 9695 states and 11156 transitions. Second operand 7 states. [2020-10-27 18:40:28,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:40:28,692 INFO L93 Difference]: Finished difference Result 19894 states and 23554 transitions. [2020-10-27 18:40:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 18:40:28,694 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 594 [2020-10-27 18:40:28,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:40:28,743 INFO L225 Difference]: With dead ends: 19894 [2020-10-27 18:40:28,743 INFO L226 Difference]: Without dead ends: 10879 [2020-10-27 18:40:28,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-27 18:40:28,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10879 states. [2020-10-27 18:40:29,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10879 to 10396. [2020-10-27 18:40:29,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10396 states. [2020-10-27 18:40:29,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10396 states to 10396 states and 11963 transitions. [2020-10-27 18:40:29,091 INFO L78 Accepts]: Start accepts. Automaton has 10396 states and 11963 transitions. Word has length 594 [2020-10-27 18:40:29,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:40:29,092 INFO L481 AbstractCegarLoop]: Abstraction has 10396 states and 11963 transitions. [2020-10-27 18:40:29,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:40:29,093 INFO L276 IsEmpty]: Start isEmpty. Operand 10396 states and 11963 transitions. [2020-10-27 18:40:29,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2020-10-27 18:40:29,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:40:29,114 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:40:29,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 18:40:29,114 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:40:29,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:40:29,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1223197757, now seen corresponding path program 1 times [2020-10-27 18:40:29,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:40:29,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647159040] [2020-10-27 18:40:29,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:40:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:29,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:29,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:29,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:29,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:30,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:31,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:34,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:34,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:34,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 627 [2020-10-27 18:40:34,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 18:40:34,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 18:40:34,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:34,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:40:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 262 [2020-10-27 18:40:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-27 18:40:34,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:34,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:40:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:34,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:34,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:34,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:40:34,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:34,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 18:40:34,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:34,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:40:34,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:40:34,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:40:34,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:34,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:40:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:34,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:34,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:34,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-27 18:40:34,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:34,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 18:40:34,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:34,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:40:34,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:40:34,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:40:34,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:34,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 18:40:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:34,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:34,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:34,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-27 18:40:34,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:34,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 18:40:34,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:40:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:40:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:40:34,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:34,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-27 18:40:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:34,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:34,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:34,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-27 18:40:34,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:34,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 18:40:34,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:34,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:40:34,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:40:34,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 18:40:34,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:34,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2020-10-27 18:40:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:34,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:34,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:34,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:40:34,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:34,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-27 18:40:34,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:34,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:40:34,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:40:34,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 18:40:34,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:34,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2020-10-27 18:40:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:35,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:35,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:35,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-27 18:40:35,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:35,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-27 18:40:35,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:35,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:40:35,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-27 18:40:35,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:40:35,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:35,756 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 376 proven. 109 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked. [2020-10-27 18:40:35,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647159040] [2020-10-27 18:40:35,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:40:35,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:40:35,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410532214] [2020-10-27 18:40:35,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:40:35,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:40:35,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:40:35,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:40:35,758 INFO L87 Difference]: Start difference. First operand 10396 states and 11963 transitions. Second operand 7 states. [2020-10-27 18:40:43,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:40:43,570 INFO L93 Difference]: Finished difference Result 22649 states and 26856 transitions. [2020-10-27 18:40:43,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 18:40:43,571 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 607 [2020-10-27 18:40:43,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:40:43,642 INFO L225 Difference]: With dead ends: 22649 [2020-10-27 18:40:43,642 INFO L226 Difference]: Without dead ends: 12940 [2020-10-27 18:40:43,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-27 18:40:43,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12940 states. [2020-10-27 18:40:43,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12940 to 12442. [2020-10-27 18:40:43,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12442 states. [2020-10-27 18:40:43,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12442 states to 12442 states and 14222 transitions. [2020-10-27 18:40:43,967 INFO L78 Accepts]: Start accepts. Automaton has 12442 states and 14222 transitions. Word has length 607 [2020-10-27 18:40:43,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:40:43,968 INFO L481 AbstractCegarLoop]: Abstraction has 12442 states and 14222 transitions. [2020-10-27 18:40:43,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:40:43,968 INFO L276 IsEmpty]: Start isEmpty. Operand 12442 states and 14222 transitions. [2020-10-27 18:40:43,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2020-10-27 18:40:43,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:40:43,998 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:40:43,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 18:40:43,999 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:40:43,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:40:43,999 INFO L82 PathProgramCache]: Analyzing trace with hash 134257771, now seen corresponding path program 1 times [2020-10-27 18:40:43,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:40:44,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912458143] [2020-10-27 18:40:44,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:40:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:44,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:44,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:44,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:45,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:49,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:49,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 723 [2020-10-27 18:40:49,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:40:49,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 18:40:49,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:49,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:40:49,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 358 [2020-10-27 18:40:49,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-27 18:40:49,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:49,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:40:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:49,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:49,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:49,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:40:49,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:49,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:40:49,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:49,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:40:49,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:40:49,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:40:49,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:49,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:40:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:49,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:49,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:49,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-27 18:40:49,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:49,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 18:40:49,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:49,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:40:49,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:40:49,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:40:49,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:49,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 18:40:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:49,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:49,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:49,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 18:40:49,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:49,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 18:40:49,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:49,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:40:49,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:40:49,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:40:49,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:49,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-27 18:40:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:49,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:49,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:49,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 18:40:49,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:49,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-27 18:40:49,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:49,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:40:49,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:40:49,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-27 18:40:49,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:49,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-27 18:40:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:49,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:49,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:49,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:40:49,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:49,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-27 18:40:49,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:49,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:40:49,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:40:49,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 18:40:49,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:49,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-27 18:40:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:49,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:49,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:40:49,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-27 18:40:49,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:40:49,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-27 18:40:49,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:40:49,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:40:49,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-27 18:40:49,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:40:49,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:40:50,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1204 backedges. 448 proven. 109 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2020-10-27 18:40:50,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912458143] [2020-10-27 18:40:50,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:40:50,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:40:50,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343115723] [2020-10-27 18:40:50,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:40:50,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:40:50,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:40:50,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:40:50,129 INFO L87 Difference]: Start difference. First operand 12442 states and 14222 transitions. Second operand 7 states. [2020-10-27 18:40:56,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:40:56,436 INFO L93 Difference]: Finished difference Result 27291 states and 31570 transitions. [2020-10-27 18:40:56,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 18:40:56,437 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 703 [2020-10-27 18:40:56,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:40:56,482 INFO L225 Difference]: With dead ends: 27291 [2020-10-27 18:40:56,483 INFO L226 Difference]: Without dead ends: 15536 [2020-10-27 18:40:56,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 18:40:56,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15536 states. [2020-10-27 18:40:56,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15536 to 15514. [2020-10-27 18:40:56,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15514 states. [2020-10-27 18:40:56,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15514 states to 15514 states and 17791 transitions. [2020-10-27 18:40:56,824 INFO L78 Accepts]: Start accepts. Automaton has 15514 states and 17791 transitions. Word has length 703 [2020-10-27 18:40:56,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:40:56,825 INFO L481 AbstractCegarLoop]: Abstraction has 15514 states and 17791 transitions. [2020-10-27 18:40:56,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:40:56,825 INFO L276 IsEmpty]: Start isEmpty. Operand 15514 states and 17791 transitions. [2020-10-27 18:40:56,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 722 [2020-10-27 18:40:56,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:40:56,860 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:40:56,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 18:40:56,860 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:40:56,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:40:56,861 INFO L82 PathProgramCache]: Analyzing trace with hash 679411239, now seen corresponding path program 1 times [2020-10-27 18:40:56,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:40:56,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1400846040] [2020-10-27 18:40:56,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:40:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:40:56,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:57,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:57,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:57,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:40:57,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:01,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:01,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:02,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:02,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 741 [2020-10-27 18:41:02,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 18:41:02,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5131 [2020-10-27 18:41:02,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:02,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:41:02,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-27 18:41:02,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 18:41:02,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:02,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:41:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:02,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:02,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:02,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:41:02,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:02,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:41:02,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:02,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:02,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:41:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:02,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:02,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:02,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-27 18:41:02,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:02,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 18:41:02,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:41:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:02,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 18:41:02,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:02,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 18:41:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:02,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:02,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:02,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:02,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-27 18:41:02,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 18:41:02,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-27 18:41:02,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:02,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:41:02,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:41:02,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-27 18:41:02,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:02,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-27 18:41:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:02,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:02,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:02,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 18:41:02,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:02,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 18:41:02,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-27 18:41:02,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:02,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:02,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2020-10-27 18:41:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:02,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:02,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:02,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:41:02,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:02,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 18:41:02,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:02,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:02,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-27 18:41:02,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:02,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:02,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2020-10-27 18:41:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:02,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:02,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:02,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-27 18:41:02,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:02,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-27 18:41:02,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:02,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:02,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-27 18:41:02,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:02,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:03,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 207 proven. 242 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2020-10-27 18:41:03,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1400846040] [2020-10-27 18:41:03,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:41:03,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:41:03,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013769664] [2020-10-27 18:41:03,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:41:03,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:41:03,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:41:03,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:41:03,500 INFO L87 Difference]: Start difference. First operand 15514 states and 17791 transitions. Second operand 7 states. [2020-10-27 18:41:08,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:41:08,299 INFO L93 Difference]: Finished difference Result 30495 states and 35114 transitions. [2020-10-27 18:41:08,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 18:41:08,301 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 721 [2020-10-27 18:41:08,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:41:08,345 INFO L225 Difference]: With dead ends: 30495 [2020-10-27 18:41:08,345 INFO L226 Difference]: Without dead ends: 15546 [2020-10-27 18:41:08,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-27 18:41:08,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15546 states. [2020-10-27 18:41:08,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15546 to 15486. [2020-10-27 18:41:08,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15486 states. [2020-10-27 18:41:08,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15486 states to 15486 states and 17295 transitions. [2020-10-27 18:41:08,786 INFO L78 Accepts]: Start accepts. Automaton has 15486 states and 17295 transitions. Word has length 721 [2020-10-27 18:41:08,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:41:08,787 INFO L481 AbstractCegarLoop]: Abstraction has 15486 states and 17295 transitions. [2020-10-27 18:41:08,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:41:08,787 INFO L276 IsEmpty]: Start isEmpty. Operand 15486 states and 17295 transitions. [2020-10-27 18:41:08,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 797 [2020-10-27 18:41:08,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:41:08,821 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:41:08,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 18:41:08,822 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:41:08,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:41:08,823 INFO L82 PathProgramCache]: Analyzing trace with hash -515523925, now seen corresponding path program 1 times [2020-10-27 18:41:08,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:41:08,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592394644] [2020-10-27 18:41:08,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:41:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:08,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:09,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:09,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:09,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:09,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:13,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:13,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 816 [2020-10-27 18:41:13,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:41:13,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 18:41:13,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:13,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:41:13,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-10-27 18:41:13,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 18:41:13,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:14,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:41:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:14,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:14,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:14,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:41:14,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:14,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:41:14,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:14,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:14,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:14,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:14,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:14,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:41:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:14,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:14,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:14,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-27 18:41:14,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:14,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-27 18:41:14,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:14,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:41:14,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:14,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-27 18:41:14,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:14,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-10-27 18:41:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:14,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:14,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:14,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:14,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-27 18:41:14,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 18:41:14,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-27 18:41:14,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:14,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:41:14,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:41:14,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-27 18:41:14,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:14,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-27 18:41:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:14,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:14,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:14,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 18:41:14,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:14,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 18:41:14,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:14,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:14,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-27 18:41:14,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:14,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:14,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2020-10-27 18:41:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:14,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:14,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:14,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:41:14,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:14,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 18:41:14,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-27 18:41:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:14,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:14,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 555 [2020-10-27 18:41:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:14,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:14,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:14,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-27 18:41:14,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:14,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-27 18:41:14,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:14,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:14,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-27 18:41:14,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:14,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:15,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1297 backedges. 207 proven. 242 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2020-10-27 18:41:15,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592394644] [2020-10-27 18:41:15,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:41:15,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 18:41:15,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189949457] [2020-10-27 18:41:15,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 18:41:15,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:41:15,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 18:41:15,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:41:15,441 INFO L87 Difference]: Start difference. First operand 15486 states and 17295 transitions. Second operand 6 states. [2020-10-27 18:41:19,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:41:19,752 INFO L93 Difference]: Finished difference Result 30439 states and 34161 transitions. [2020-10-27 18:41:19,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 18:41:19,753 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 796 [2020-10-27 18:41:19,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:41:19,799 INFO L225 Difference]: With dead ends: 30439 [2020-10-27 18:41:19,799 INFO L226 Difference]: Without dead ends: 15504 [2020-10-27 18:41:19,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-27 18:41:19,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15504 states. [2020-10-27 18:41:20,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15504 to 15446. [2020-10-27 18:41:20,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15446 states. [2020-10-27 18:41:20,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15446 states to 15446 states and 16724 transitions. [2020-10-27 18:41:20,108 INFO L78 Accepts]: Start accepts. Automaton has 15446 states and 16724 transitions. Word has length 796 [2020-10-27 18:41:20,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:41:20,109 INFO L481 AbstractCegarLoop]: Abstraction has 15446 states and 16724 transitions. [2020-10-27 18:41:20,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 18:41:20,109 INFO L276 IsEmpty]: Start isEmpty. Operand 15446 states and 16724 transitions. [2020-10-27 18:41:20,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 895 [2020-10-27 18:41:20,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:41:20,141 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:41:20,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 18:41:20,142 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:41:20,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:41:20,142 INFO L82 PathProgramCache]: Analyzing trace with hash 571318247, now seen corresponding path program 1 times [2020-10-27 18:41:20,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:41:20,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881472845] [2020-10-27 18:41:20,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:41:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:20,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:20,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:20,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:20,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:21,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:25,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:25,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 914 [2020-10-27 18:41:25,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:41:25,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-27 18:41:25,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:41:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-27 18:41:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 18:41:25,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:25,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:41:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:25,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:25,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:25,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:41:25,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:25,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:41:25,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:25,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:25,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:41:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:25,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:25,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:25,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-27 18:41:25,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:25,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-27 18:41:25,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:25,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:41:25,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:25,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 259 [2020-10-27 18:41:25,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:25,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2020-10-27 18:41:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:25,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:25,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:25,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-27 18:41:25,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:25,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 18:41:25,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:41:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:41:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-27 18:41:25,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:25,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-27 18:41:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:25,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:25,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:25,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 18:41:25,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:25,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-27 18:41:25,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:25,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:25,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-27 18:41:25,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:25,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:25,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2020-10-27 18:41:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:26,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:26,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:26,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:41:26,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:26,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 18:41:26,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:26,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:26,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-27 18:41:26,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:26,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:26,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 653 [2020-10-27 18:41:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:26,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:26,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:26,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-27 18:41:26,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:26,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-27 18:41:26,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:26,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:26,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-27 18:41:26,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:26,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:26,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1371 backedges. 207 proven. 242 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2020-10-27 18:41:26,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881472845] [2020-10-27 18:41:26,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:41:26,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:41:26,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966378112] [2020-10-27 18:41:26,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:41:26,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:41:26,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:41:26,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:41:26,731 INFO L87 Difference]: Start difference. First operand 15446 states and 16724 transitions. Second operand 7 states. [2020-10-27 18:41:29,361 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-27 18:41:31,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:41:31,445 INFO L93 Difference]: Finished difference Result 32294 states and 35144 transitions. [2020-10-27 18:41:31,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 18:41:31,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 894 [2020-10-27 18:41:31,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:41:31,481 INFO L225 Difference]: With dead ends: 32294 [2020-10-27 18:41:31,482 INFO L226 Difference]: Without dead ends: 15098 [2020-10-27 18:41:31,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 18:41:31,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15098 states. [2020-10-27 18:41:31,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15098 to 14360. [2020-10-27 18:41:31,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14360 states. [2020-10-27 18:41:31,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14360 states to 14360 states and 15027 transitions. [2020-10-27 18:41:31,744 INFO L78 Accepts]: Start accepts. Automaton has 14360 states and 15027 transitions. Word has length 894 [2020-10-27 18:41:31,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:41:31,745 INFO L481 AbstractCegarLoop]: Abstraction has 14360 states and 15027 transitions. [2020-10-27 18:41:31,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:41:31,745 INFO L276 IsEmpty]: Start isEmpty. Operand 14360 states and 15027 transitions. [2020-10-27 18:41:31,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 935 [2020-10-27 18:41:31,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:41:31,771 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:41:31,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 18:41:31,772 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:41:31,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:41:31,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1438026476, now seen corresponding path program 1 times [2020-10-27 18:41:31,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:41:31,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388745083] [2020-10-27 18:41:31,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:41:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:31,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:32,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:32,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:32,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:33,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:36,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:36,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 956 [2020-10-27 18:41:36,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:41:36,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-27 18:41:36,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:41:36,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 591 [2020-10-27 18:41:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-27 18:41:36,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:37,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:41:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:37,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:37,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:37,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:41:37,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:37,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:41:37,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:37,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:37,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:37,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:37,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:37,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:41:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:37,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:37,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:37,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-27 18:41:37,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:37,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-27 18:41:37,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:37,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:37,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-27 18:41:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:37,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:37,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:37,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 18:41:37,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:37,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 18:41:37,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:37,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:37,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-27 18:41:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:37,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:37,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:37,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 18:41:37,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:37,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 18:41:37,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:37,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:37,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:37,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-27 18:41:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:37,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:37,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:37,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-27 18:41:37,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:37,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 18:41:37,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:37,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:41:37,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:37,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-27 18:41:37,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:37,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2020-10-27 18:41:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:37,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:37,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:37,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:41:37,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:37,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-27 18:41:37,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:41:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:41:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-27 18:41:37,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:37,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 693 [2020-10-27 18:41:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:37,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:37,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:37,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-27 18:41:37,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:37,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-27 18:41:37,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:37,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:37,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-27 18:41:37,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:37,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 556 proven. 109 refuted. 0 times theorem prover too weak. 1105 trivial. 0 not checked. [2020-10-27 18:41:38,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388745083] [2020-10-27 18:41:38,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:41:38,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:41:38,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128633656] [2020-10-27 18:41:38,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:41:38,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:41:38,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:41:38,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:41:38,491 INFO L87 Difference]: Start difference. First operand 14360 states and 15027 transitions. Second operand 7 states. [2020-10-27 18:41:43,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:41:43,452 INFO L93 Difference]: Finished difference Result 29398 states and 30834 transitions. [2020-10-27 18:41:43,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 18:41:43,453 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 934 [2020-10-27 18:41:43,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:41:43,484 INFO L225 Difference]: With dead ends: 29398 [2020-10-27 18:41:43,484 INFO L226 Difference]: Without dead ends: 15378 [2020-10-27 18:41:43,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-27 18:41:43,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15378 states. [2020-10-27 18:41:43,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15378 to 15374. [2020-10-27 18:41:43,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15374 states. [2020-10-27 18:41:43,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15374 states to 15374 states and 16062 transitions. [2020-10-27 18:41:43,772 INFO L78 Accepts]: Start accepts. Automaton has 15374 states and 16062 transitions. Word has length 934 [2020-10-27 18:41:43,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:41:43,773 INFO L481 AbstractCegarLoop]: Abstraction has 15374 states and 16062 transitions. [2020-10-27 18:41:43,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:41:43,773 INFO L276 IsEmpty]: Start isEmpty. Operand 15374 states and 16062 transitions. [2020-10-27 18:41:43,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 982 [2020-10-27 18:41:43,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:41:43,798 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:41:43,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 18:41:43,798 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:41:43,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:41:43,799 INFO L82 PathProgramCache]: Analyzing trace with hash 2145220438, now seen corresponding path program 1 times [2020-10-27 18:41:43,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:41:43,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1382888443] [2020-10-27 18:41:43,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:41:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:44,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:44,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:44,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:44,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:45,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:49,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:49,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1003 [2020-10-27 18:41:49,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:41:49,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-27 18:41:49,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:49,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:41:49,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 970 [2020-10-27 18:41:49,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 18:41:49,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:49,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:41:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:49,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:49,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:49,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:41:49,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:49,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:41:49,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:49,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:49,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:49,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:49,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:49,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:41:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:49,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:49,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:49,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-27 18:41:49,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:49,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-27 18:41:49,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:49,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:49,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:49,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:49,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:49,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-27 18:41:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:49,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:49,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:49,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 18:41:49,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:49,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 18:41:49,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:49,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:49,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:49,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:49,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:49,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-27 18:41:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:49,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:49,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:49,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 18:41:49,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:49,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 18:41:49,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:49,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:49,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:49,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:49,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:49,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-27 18:41:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:49,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:49,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:49,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 18:41:49,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:49,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 18:41:49,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:49,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:49,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:49,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:49,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:49,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 630 [2020-10-27 18:41:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:49,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:49,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:49,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:41:49,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:49,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 18:41:49,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:49,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:49,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:49,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:49,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:49,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2020-10-27 18:41:49,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:49,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:49,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:49,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-27 18:41:49,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:49,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-27 18:41:49,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:49,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:41:49,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:49,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 213 [2020-10-27 18:41:49,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1867 backedges. 147 proven. 6 refuted. 0 times theorem prover too weak. 1714 trivial. 0 not checked. [2020-10-27 18:41:50,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1382888443] [2020-10-27 18:41:50,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:41:50,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:41:50,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233396993] [2020-10-27 18:41:50,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:41:50,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:41:50,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:41:50,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:41:50,517 INFO L87 Difference]: Start difference. First operand 15374 states and 16062 transitions. Second operand 5 states. [2020-10-27 18:41:54,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:41:54,134 INFO L93 Difference]: Finished difference Result 30066 states and 31419 transitions. [2020-10-27 18:41:54,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:41:54,135 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 981 [2020-10-27 18:41:54,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:41:54,161 INFO L225 Difference]: With dead ends: 30066 [2020-10-27 18:41:54,161 INFO L226 Difference]: Without dead ends: 15035 [2020-10-27 18:41:54,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:41:54,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15035 states. [2020-10-27 18:41:54,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15035 to 14696. [2020-10-27 18:41:54,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14696 states. [2020-10-27 18:41:54,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14696 states to 14696 states and 15226 transitions. [2020-10-27 18:41:54,423 INFO L78 Accepts]: Start accepts. Automaton has 14696 states and 15226 transitions. Word has length 981 [2020-10-27 18:41:54,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:41:54,424 INFO L481 AbstractCegarLoop]: Abstraction has 14696 states and 15226 transitions. [2020-10-27 18:41:54,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:41:54,425 INFO L276 IsEmpty]: Start isEmpty. Operand 14696 states and 15226 transitions. [2020-10-27 18:41:54,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1059 [2020-10-27 18:41:54,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:41:54,449 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:41:54,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 18:41:54,450 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:41:54,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:41:54,450 INFO L82 PathProgramCache]: Analyzing trace with hash 348025696, now seen corresponding path program 1 times [2020-10-27 18:41:54,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:41:54,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345960779] [2020-10-27 18:41:54,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:41:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:54,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:54,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:55,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:55,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:55,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:57,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:59,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:59,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1082 [2020-10-27 18:41:59,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 18:41:59,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 18:41:59,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:41:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1046 [2020-10-27 18:41:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 18:41:59,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:59,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:41:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:59,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:59,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:59,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:41:59,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:59,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 18:41:59,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:59,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:59,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:59,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:59,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:59,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:41:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:59,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:41:59,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:41:59,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-27 18:41:59,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:41:59,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 18:41:59,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:41:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:41:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:41:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:41:59,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:41:59,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-27 18:41:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:41:59,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:00,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:00,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 18:42:00,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:00,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 18:42:00,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:00,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:00,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:00,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:00,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:00,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-27 18:42:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:00,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:00,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:00,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 18:42:00,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:00,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 18:42:00,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:00,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:00,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:00,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:00,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:00,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-27 18:42:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:00,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:00,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:00,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 18:42:00,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:00,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-27 18:42:00,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:00,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:00,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 630 [2020-10-27 18:42:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:00,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:00,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:00,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:42:00,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:00,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 18:42:00,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:00,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:00,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2020-10-27 18:42:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:00,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:00,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:00,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-27 18:42:00,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:00,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-27 18:42:00,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:42:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 289 [2020-10-27 18:42:00,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:00,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 18:42:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:00,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:00,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:00,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 18:42:00,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:00,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 18:42:00,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:00,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:42:00,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:00,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 18:42:00,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:01,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 147 proven. 6 refuted. 0 times theorem prover too weak. 1745 trivial. 0 not checked. [2020-10-27 18:42:01,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345960779] [2020-10-27 18:42:01,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:42:01,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 18:42:01,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13588936] [2020-10-27 18:42:01,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 18:42:01,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:42:01,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 18:42:01,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:42:01,299 INFO L87 Difference]: Start difference. First operand 14696 states and 15226 transitions. Second operand 6 states. [2020-10-27 18:42:06,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:42:06,028 INFO L93 Difference]: Finished difference Result 28710 states and 29759 transitions. [2020-10-27 18:42:06,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 18:42:06,030 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1058 [2020-10-27 18:42:06,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:42:06,063 INFO L225 Difference]: With dead ends: 28710 [2020-10-27 18:42:06,063 INFO L226 Difference]: Without dead ends: 14698 [2020-10-27 18:42:06,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:42:06,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14698 states. [2020-10-27 18:42:06,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14698 to 14696. [2020-10-27 18:42:06,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14696 states. [2020-10-27 18:42:06,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14696 states to 14696 states and 15166 transitions. [2020-10-27 18:42:06,309 INFO L78 Accepts]: Start accepts. Automaton has 14696 states and 15166 transitions. Word has length 1058 [2020-10-27 18:42:06,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:42:06,311 INFO L481 AbstractCegarLoop]: Abstraction has 14696 states and 15166 transitions. [2020-10-27 18:42:06,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 18:42:06,311 INFO L276 IsEmpty]: Start isEmpty. Operand 14696 states and 15166 transitions. [2020-10-27 18:42:06,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1098 [2020-10-27 18:42:06,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:42:06,336 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:42:06,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 18:42:06,336 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:42:06,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:42:06,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1088402303, now seen corresponding path program 1 times [2020-10-27 18:42:06,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:42:06,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126110668] [2020-10-27 18:42:06,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:42:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:06,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:06,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:07,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:07,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:08,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:11,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:11,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1121 [2020-10-27 18:42:11,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:42:11,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-27 18:42:11,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:11,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 18:42:11,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 750 [2020-10-27 18:42:11,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 336 [2020-10-27 18:42:11,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:11,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:42:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:11,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:11,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:11,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:42:11,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:11,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 18:42:11,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:11,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:11,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:42:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:11,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:11,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:11,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-27 18:42:11,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:11,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 18:42:11,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:11,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:11,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-27 18:42:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:11,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:11,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:11,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 18:42:11,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:11,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 18:42:11,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:11,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:11,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-27 18:42:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:11,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:12,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:12,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-27 18:42:12,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:12,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 18:42:12,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:12,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:12,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:12,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:12,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:12,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-27 18:42:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:12,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:12,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:12,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 18:42:12,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:12,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-27 18:42:12,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:42:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:12,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:42:12,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:12,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 630 [2020-10-27 18:42:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:12,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:12,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:12,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 18:42:12,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:12,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-27 18:42:12,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:12,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:42:12,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:12,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-27 18:42:12,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:12,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 740 [2020-10-27 18:42:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:12,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:12,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:13,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:13,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 337 [2020-10-27 18:42:13,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 18:42:13,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1326 [2020-10-27 18:42:13,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:13,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 18:42:13,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:42:13,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 337 [2020-10-27 18:42:13,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:42:14,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-27 18:42:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:42:14,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:42:14,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:42:14,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 18:42:14,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:42:14,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-27 18:42:14,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:42:14,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 18:42:14,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:42:14,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 18:42:14,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0