/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label31.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:02:50,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:02:50,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:02:50,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:02:50,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:02:50,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:02:50,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:02:50,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:02:50,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:02:50,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:02:50,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:02:50,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:02:50,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:02:50,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:02:50,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:02:50,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:02:50,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:02:50,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:02:50,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:02:50,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:02:50,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:02:50,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:02:50,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:02:50,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:02:50,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:02:50,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:02:50,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:02:50,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:02:50,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:02:50,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:02:50,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:02:50,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:02:50,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:02:50,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:02:50,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:02:50,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:02:50,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:02:50,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:02:50,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:02:50,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:02:50,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:02:50,774 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 08:02:50,837 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:02:50,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:02:50,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:02:50,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:02:50,843 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:02:50,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:02:50,844 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:02:50,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:02:50,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:02:50,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:02:50,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:02:50,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:02:50,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:02:50,846 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:02:50,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:02:50,847 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:02:50,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:02:50,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:02:50,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:02:50,848 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:02:50,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:02:50,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:02:50,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:02:50,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:02:50,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:02:50,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:02:50,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:02:50,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:02:50,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:02:50,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:02:51,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:02:51,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:02:51,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:02:51,315 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:02:51,316 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:02:51,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label31.c [2020-10-29 08:02:51,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d140b00ef/bc293bb54f4f4f039d1a4c5dfe6246eb/FLAG536a2431c [2020-10-29 08:02:52,226 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:02:52,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label31.c [2020-10-29 08:02:52,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d140b00ef/bc293bb54f4f4f039d1a4c5dfe6246eb/FLAG536a2431c [2020-10-29 08:02:52,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d140b00ef/bc293bb54f4f4f039d1a4c5dfe6246eb [2020-10-29 08:02:52,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:02:52,407 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:02:52,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:02:52,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:02:52,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:02:52,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:02:52" (1/1) ... [2020-10-29 08:02:52,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5c9b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:52, skipping insertion in model container [2020-10-29 08:02:52,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:02:52" (1/1) ... [2020-10-29 08:02:52,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:02:52,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:02:53,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:02:53,309 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:02:53,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:02:53,549 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:02:53,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:53 WrapperNode [2020-10-29 08:02:53,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:02:53,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:02:53,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:02:53,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:02:53,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:53" (1/1) ... [2020-10-29 08:02:53,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:53" (1/1) ... [2020-10-29 08:02:53,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:53" (1/1) ... [2020-10-29 08:02:53,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:53" (1/1) ... [2020-10-29 08:02:53,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:53" (1/1) ... [2020-10-29 08:02:53,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:53" (1/1) ... [2020-10-29 08:02:53,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:53" (1/1) ... [2020-10-29 08:02:53,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:02:53,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:02:53,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:02:53,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:02:53,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:02:53,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:02:53,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:02:53,890 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:02:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:02:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:02:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:02:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:02:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:02:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:02:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:02:53,893 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:02:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:02:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:02:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:02:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:02:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:02:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:02:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:02:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:02:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:02:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:02:56,767 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:02:56,768 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:02:56,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:02:56 BoogieIcfgContainer [2020-10-29 08:02:56,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:02:56,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:02:56,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:02:56,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:02:56,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:02:52" (1/3) ... [2020-10-29 08:02:56,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e278ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:02:56, skipping insertion in model container [2020-10-29 08:02:56,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:53" (2/3) ... [2020-10-29 08:02:56,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e278ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:02:56, skipping insertion in model container [2020-10-29 08:02:56,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:02:56" (3/3) ... [2020-10-29 08:02:56,781 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label31.c [2020-10-29 08:02:56,795 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:02:56,801 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:02:56,816 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:02:56,850 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:02:56,850 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:02:56,850 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:02:56,850 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:02:56,850 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:02:56,850 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:02:56,851 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:02:56,851 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:02:56,881 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 08:02:56,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-29 08:02:56,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:56,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:02:56,888 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:56,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:56,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1926687852, now seen corresponding path program 1 times [2020-10-29 08:02:56,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:56,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766578167] [2020-10-29 08:02:56,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:57,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:57,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:57,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 08:02:57,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:57,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-10-29 08:02:57,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:57,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:57,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:02:57,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:02:57,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:02:57,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:02:57,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:57,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:57,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:57,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:57,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:57,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:02:57,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:57,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:57,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:57,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:57,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:02:57,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:02:57,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:02:57,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766578167] [2020-10-29 08:02:57,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:02:57,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 08:02:57,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132268430] [2020-10-29 08:02:57,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 08:02:57,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:57,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 08:02:57,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 08:02:57,888 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 4 states. [2020-10-29 08:03:02,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:02,682 INFO L93 Difference]: Finished difference Result 1174 states and 2171 transitions. [2020-10-29 08:03:02,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:03:02,685 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-29 08:03:02,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:02,721 INFO L225 Difference]: With dead ends: 1174 [2020-10-29 08:03:02,721 INFO L226 Difference]: Without dead ends: 697 [2020-10-29 08:03:02,730 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 [2020-10-29 08:03:02,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-29 08:03:02,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 690. [2020-10-29 08:03:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2020-10-29 08:03:02,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1078 transitions. [2020-10-29 08:03:02,837 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1078 transitions. Word has length 15 [2020-10-29 08:03:02,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:02,838 INFO L481 AbstractCegarLoop]: Abstraction has 690 states and 1078 transitions. [2020-10-29 08:03:02,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 08:03:02,838 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1078 transitions. [2020-10-29 08:03:02,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-29 08:03:02,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:02,843 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 08:03:02,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:03:02,844 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:02,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:02,845 INFO L82 PathProgramCache]: Analyzing trace with hash 954480813, now seen corresponding path program 1 times [2020-10-29 08:03:02,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:02,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714301978] [2020-10-29 08:03:02,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:02,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:03,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:03,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:03,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-29 08:03:03,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:03:03,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 995 [2020-10-29 08:03:03,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:03,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:03,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:03:03,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:03:03,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 08:03:03,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:04,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:04,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:04,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:04,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:04,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:04,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:03:04,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:04,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:04,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:04,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:04,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:03:04,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:04,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:04,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:04,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:04,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-29 08:03:04,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:04,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-29 08:03:04,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:04,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:04,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:04,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:04,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 08:03:04,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:04,326 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:03:04,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714301978] [2020-10-29 08:03:04,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:03:04,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:03:04,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946969037] [2020-10-29 08:03:04,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:04,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:04,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:04,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:04,335 INFO L87 Difference]: Start difference. First operand 690 states and 1078 transitions. Second operand 7 states. [2020-10-29 08:03:09,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:09,251 INFO L93 Difference]: Finished difference Result 1741 states and 2664 transitions. [2020-10-29 08:03:09,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:03:09,251 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-29 08:03:09,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:09,259 INFO L225 Difference]: With dead ends: 1741 [2020-10-29 08:03:09,259 INFO L226 Difference]: Without dead ends: 1057 [2020-10-29 08:03:09,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:03:09,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2020-10-29 08:03:09,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1042. [2020-10-29 08:03:09,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2020-10-29 08:03:09,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1495 transitions. [2020-10-29 08:03:09,314 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1495 transitions. Word has length 90 [2020-10-29 08:03:09,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:09,314 INFO L481 AbstractCegarLoop]: Abstraction has 1042 states and 1495 transitions. [2020-10-29 08:03:09,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:09,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1495 transitions. [2020-10-29 08:03:09,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-29 08:03:09,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:09,317 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 08:03:09,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:03:09,318 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:09,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:09,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1002291563, now seen corresponding path program 1 times [2020-10-29 08:03:09,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:09,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [373744712] [2020-10-29 08:03:09,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:09,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:09,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:10,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:10,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 08:03:10,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:03:10,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 761 [2020-10-29 08:03:10,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:10,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:10,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:03:10,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:03:10,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 08:03:10,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:10,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:10,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:10,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:10,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:10,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:10,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:03:10,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:10,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:10,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:10,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:10,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:03:10,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:10,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:10,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:10,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:10,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:03:10,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:10,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-29 08:03:10,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:10,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 08:03:10,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:10,654 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:03:10,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [373744712] [2020-10-29 08:03:10,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:03:10,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:03:10,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330452971] [2020-10-29 08:03:10,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:10,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:10,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:10,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:10,658 INFO L87 Difference]: Start difference. First operand 1042 states and 1495 transitions. Second operand 7 states. [2020-10-29 08:03:16,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:16,045 INFO L93 Difference]: Finished difference Result 3177 states and 4649 transitions. [2020-10-29 08:03:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:03:16,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-29 08:03:16,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:16,068 INFO L225 Difference]: With dead ends: 3177 [2020-10-29 08:03:16,068 INFO L226 Difference]: Without dead ends: 2141 [2020-10-29 08:03:16,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:03:16,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2141 states. [2020-10-29 08:03:16,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2141 to 2092. [2020-10-29 08:03:16,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2020-10-29 08:03:16,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2714 transitions. [2020-10-29 08:03:16,142 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2714 transitions. Word has length 91 [2020-10-29 08:03:16,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:16,143 INFO L481 AbstractCegarLoop]: Abstraction has 2092 states and 2714 transitions. [2020-10-29 08:03:16,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:16,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2714 transitions. [2020-10-29 08:03:16,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-29 08:03:16,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:16,148 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:03:16,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:03:16,148 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:16,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:16,149 INFO L82 PathProgramCache]: Analyzing trace with hash -286826554, now seen corresponding path program 1 times [2020-10-29 08:03:16,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:16,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648751850] [2020-10-29 08:03:16,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:16,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:16,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:16,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:17,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:17,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:17,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:19,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:19,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-29 08:03:19,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:03:19,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3506 [2020-10-29 08:03:19,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:19,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:19,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:03:19,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:03:19,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-29 08:03:19,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:19,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:19,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:19,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:19,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:19,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:19,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 08:03:19,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:19,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:19,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:19,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:19,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:03:19,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:19,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:19,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:19,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:20,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:20,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:03:20,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:03:20,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-29 08:03:20,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:20,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:20,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:20,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:20,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:03:20,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:20,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:03:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:20,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:20,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:20,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:03:20,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:20,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-29 08:03:20,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:20,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:20,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:20,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:20,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 08:03:20,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:20,394 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 80 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 08:03:20,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648751850] [2020-10-29 08:03:20,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:20,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:03:20,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877484998] [2020-10-29 08:03:20,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:20,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:20,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:20,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:20,399 INFO L87 Difference]: Start difference. First operand 2092 states and 2714 transitions. Second operand 7 states. [2020-10-29 08:03:25,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:25,974 INFO L93 Difference]: Finished difference Result 4925 states and 6628 transitions. [2020-10-29 08:03:25,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:03:25,975 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-10-29 08:03:25,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:25,998 INFO L225 Difference]: With dead ends: 4925 [2020-10-29 08:03:25,998 INFO L226 Difference]: Without dead ends: 2839 [2020-10-29 08:03:26,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:03:26,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2020-10-29 08:03:26,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2438. [2020-10-29 08:03:26,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2438 states. [2020-10-29 08:03:26,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 3191 transitions. [2020-10-29 08:03:26,092 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 3191 transitions. Word has length 178 [2020-10-29 08:03:26,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:26,093 INFO L481 AbstractCegarLoop]: Abstraction has 2438 states and 3191 transitions. [2020-10-29 08:03:26,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:26,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 3191 transitions. [2020-10-29 08:03:26,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-10-29 08:03:26,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:26,101 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:03:26,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:03:26,102 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:26,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:26,102 INFO L82 PathProgramCache]: Analyzing trace with hash 837276101, now seen corresponding path program 1 times [2020-10-29 08:03:26,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:26,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995369118] [2020-10-29 08:03:26,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:26,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:26,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:26,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:27,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:28,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:30,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:30,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-29 08:03:30,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:03:30,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4423 [2020-10-29 08:03:30,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:30,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:30,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:03:30,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-29 08:03:30,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:03:30,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:30,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:30,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:30,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:30,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:30,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:30,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:03:30,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:30,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:30,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:30,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:30,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:30,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-29 08:03:30,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:30,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:31,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:31,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:03:31,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:31,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 08:03:31,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:31,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:31,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:03:31,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:31,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:03:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:31,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:31,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:31,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:31,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:03:31,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:03:31,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-10-29 08:03:31,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:31,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:31,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:31,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:31,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 08:03:31,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:31,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-29 08:03:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:31,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:31,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:31,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:03:31,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:31,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-29 08:03:31,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:31,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:03:31,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:32,056 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 197 proven. 6 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-29 08:03:32,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995369118] [2020-10-29 08:03:32,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:32,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:03:32,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011261253] [2020-10-29 08:03:32,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:32,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:32,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:32,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:32,060 INFO L87 Difference]: Start difference. First operand 2438 states and 3191 transitions. Second operand 7 states. [2020-10-29 08:03:37,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:37,875 INFO L93 Difference]: Finished difference Result 6298 states and 8429 transitions. [2020-10-29 08:03:37,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:03:37,880 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 356 [2020-10-29 08:03:37,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:37,899 INFO L225 Difference]: With dead ends: 6298 [2020-10-29 08:03:37,900 INFO L226 Difference]: Without dead ends: 3145 [2020-10-29 08:03:37,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:03:37,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states. [2020-10-29 08:03:37,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 3123. [2020-10-29 08:03:37,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3123 states. [2020-10-29 08:03:38,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 3446 transitions. [2020-10-29 08:03:38,004 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 3446 transitions. Word has length 356 [2020-10-29 08:03:38,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:38,004 INFO L481 AbstractCegarLoop]: Abstraction has 3123 states and 3446 transitions. [2020-10-29 08:03:38,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:38,005 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 3446 transitions. [2020-10-29 08:03:38,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2020-10-29 08:03:38,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:38,020 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-29 08:03:38,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:03:38,020 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:38,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:38,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1746958087, now seen corresponding path program 1 times [2020-10-29 08:03:38,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:38,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [9713042] [2020-10-29 08:03:38,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:38,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:38,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:38,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:40,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:43,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:43,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 561 [2020-10-29 08:03:43,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:03:43,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-29 08:03:43,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:43,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:43,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:43,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:03:43,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 08:03:43,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:43,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:43,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:43,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:43,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:43,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:43,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:03:43,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:43,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:43,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:43,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:43,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:43,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:43,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:03:43,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:43,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 08:03:43,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:43,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:43,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 08:03:43,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:43,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:03:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:43,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:43,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:43,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:03:43,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:43,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-29 08:03:43,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:43,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:43,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:43,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:43,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 08:03:43,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:43,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-29 08:03:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:44,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:44,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:44,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:03:44,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:44,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 08:03:44,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:44,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:44,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:44,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:03:44,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:44,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:03:44,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-29 08:03:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:44,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:44,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:44,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:03:44,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:44,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 08:03:44,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:44,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:44,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:44,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:03:44,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:44,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:44,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-29 08:03:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:44,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:44,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:44,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:03:44,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:44,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:03:44,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:44,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:44,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:44,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:03:44,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:44,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:44,824 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 144 proven. 290 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2020-10-29 08:03:44,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [9713042] [2020-10-29 08:03:44,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:44,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:03:44,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515326204] [2020-10-29 08:03:44,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:44,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:44,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:44,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:44,828 INFO L87 Difference]: Start difference. First operand 3123 states and 3446 transitions. Second operand 7 states. [2020-10-29 08:03:48,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:48,814 INFO L93 Difference]: Finished difference Result 9342 states and 10453 transitions. [2020-10-29 08:03:48,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:03:48,816 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 541 [2020-10-29 08:03:48,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:48,850 INFO L225 Difference]: With dead ends: 9342 [2020-10-29 08:03:48,850 INFO L226 Difference]: Without dead ends: 6225 [2020-10-29 08:03:48,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:03:48,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6225 states. [2020-10-29 08:03:49,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6225 to 5541. [2020-10-29 08:03:49,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5541 states. [2020-10-29 08:03:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5541 states to 5541 states and 6123 transitions. [2020-10-29 08:03:49,026 INFO L78 Accepts]: Start accepts. Automaton has 5541 states and 6123 transitions. Word has length 541 [2020-10-29 08:03:49,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:49,027 INFO L481 AbstractCegarLoop]: Abstraction has 5541 states and 6123 transitions. [2020-10-29 08:03:49,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:49,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5541 states and 6123 transitions. [2020-10-29 08:03:49,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2020-10-29 08:03:49,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:49,054 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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] [2020-10-29 08:03:49,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:03:49,054 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:49,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:49,055 INFO L82 PathProgramCache]: Analyzing trace with hash 985607659, now seen corresponding path program 1 times [2020-10-29 08:03:49,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:49,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307755428] [2020-10-29 08:03:49,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:49,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:49,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:49,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:49,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:52,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:54,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:54,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 730 [2020-10-29 08:03:54,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:03:54,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-29 08:03:54,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:54,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:54,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:03:54,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:03:54,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:03:54,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:54,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:54,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:54,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:54,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:54,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:54,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:03:54,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:54,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:54,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:54,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:54,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:03:54,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:54,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:54,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:54,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:54,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:03:54,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:54,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-29 08:03:54,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:54,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:54,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:54,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:54,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:03:54,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:55,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:03:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:55,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:55,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:55,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:03:55,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:55,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:03:55,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:55,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:55,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:55,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:03:55,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:55,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:55,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-29 08:03:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:55,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:55,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:55,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 08:03:55,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:55,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:03:55,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:55,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 08:03:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:55,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:55,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2020-10-29 08:03:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:55,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:55,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:55,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:03:55,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:55,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-29 08:03:55,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:55,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:55,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:55,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:03:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:55,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:55,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 565 [2020-10-29 08:03:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:55,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:55,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:55,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:03:55,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:55,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:03:55,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:55,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:03:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:55,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:56,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 35 proven. 426 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2020-10-29 08:03:56,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307755428] [2020-10-29 08:03:56,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:56,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:03:56,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945252003] [2020-10-29 08:03:56,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:56,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:56,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:56,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:56,709 INFO L87 Difference]: Start difference. First operand 5541 states and 6123 transitions. Second operand 7 states. [2020-10-29 08:04:00,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:00,351 INFO L93 Difference]: Finished difference Result 10751 states and 11913 transitions. [2020-10-29 08:04:00,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:04:00,351 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 710 [2020-10-29 08:04:00,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:00,375 INFO L225 Difference]: With dead ends: 10751 [2020-10-29 08:04:00,375 INFO L226 Difference]: Without dead ends: 5553 [2020-10-29 08:04:00,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:04:00,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5553 states. [2020-10-29 08:04:00,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5553 to 5541. [2020-10-29 08:04:00,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5541 states. [2020-10-29 08:04:00,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5541 states to 5541 states and 6116 transitions. [2020-10-29 08:04:00,528 INFO L78 Accepts]: Start accepts. Automaton has 5541 states and 6116 transitions. Word has length 710 [2020-10-29 08:04:00,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:00,529 INFO L481 AbstractCegarLoop]: Abstraction has 5541 states and 6116 transitions. [2020-10-29 08:04:00,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:04:00,529 INFO L276 IsEmpty]: Start isEmpty. Operand 5541 states and 6116 transitions. [2020-10-29 08:04:00,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 950 [2020-10-29 08:04:00,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:00,576 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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] [2020-10-29 08:04:00,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:04:00,576 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:00,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:00,577 INFO L82 PathProgramCache]: Analyzing trace with hash 97849450, now seen corresponding path program 1 times [2020-10-29 08:04:00,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:00,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [376169155] [2020-10-29 08:04:00,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:00,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:01,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:01,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:01,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:05,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:05,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 971 [2020-10-29 08:04:05,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:04:05,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-29 08:04:05,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:05,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:05,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:04:05,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:04:05,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 496 [2020-10-29 08:04:05,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:05,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:05,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:05,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:05,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:05,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:05,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 08:04:05,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:05,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:05,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:05,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:05,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:04:05,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:05,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:06,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:06,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:06,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:04:06,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:06,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-29 08:04:06,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:06,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 240 [2020-10-29 08:04:06,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:06,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:04:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:06,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:06,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:06,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:04:06,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:06,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-10-29 08:04:06,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:06,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:06,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:06,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:06,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:04:06,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:06,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-29 08:04:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:06,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:06,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:06,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:04:06,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:06,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:04:06,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:06,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:04:06,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:06,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:06,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2020-10-29 08:04:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:06,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:06,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:06,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 08:04:06,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:06,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:04:06,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:06,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:06,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:06,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 08:04:06,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:06,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:06,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 694 [2020-10-29 08:04:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:06,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:06,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:06,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:04:06,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:06,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:04:06,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:06,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:04:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:06,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:07,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-29 08:04:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:07,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:07,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:07,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:04:07,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:07,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:04:07,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:07,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:07,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:07,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:04:07,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:07,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:07,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1757 backedges. 59 proven. 854 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2020-10-29 08:04:07,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [376169155] [2020-10-29 08:04:07,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:07,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:04:07,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076385594] [2020-10-29 08:04:07,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:04:07,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:07,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:04:07,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:04:07,821 INFO L87 Difference]: Start difference. First operand 5541 states and 6116 transitions. Second operand 7 states. [2020-10-29 08:04:11,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:11,561 INFO L93 Difference]: Finished difference Result 11111 states and 12298 transitions. [2020-10-29 08:04:11,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:04:11,562 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 949 [2020-10-29 08:04:11,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:11,588 INFO L225 Difference]: With dead ends: 11111 [2020-10-29 08:04:11,589 INFO L226 Difference]: Without dead ends: 5913 [2020-10-29 08:04:11,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:04:11,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5913 states. [2020-10-29 08:04:11,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5913 to 5893. [2020-10-29 08:04:11,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5893 states. [2020-10-29 08:04:11,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5893 states to 5893 states and 6488 transitions. [2020-10-29 08:04:11,748 INFO L78 Accepts]: Start accepts. Automaton has 5893 states and 6488 transitions. Word has length 949 [2020-10-29 08:04:11,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:11,750 INFO L481 AbstractCegarLoop]: Abstraction has 5893 states and 6488 transitions. [2020-10-29 08:04:11,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:04:11,750 INFO L276 IsEmpty]: Start isEmpty. Operand 5893 states and 6488 transitions. [2020-10-29 08:04:11,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1026 [2020-10-29 08:04:11,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:11,771 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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] [2020-10-29 08:04:11,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:04:11,771 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:11,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:11,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1199064399, now seen corresponding path program 1 times [2020-10-29 08:04:11,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:11,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814942984] [2020-10-29 08:04:11,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:12,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:12,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:12,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:12,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:17,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:17,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1049 [2020-10-29 08:04:17,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:04:17,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-29 08:04:17,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:17,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:17,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:17,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 413 [2020-10-29 08:04:17,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-29 08:04:17,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:17,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:17,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:17,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:17,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:17,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:17,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:04:17,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:17,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:17,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:17,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:17,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:17,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:17,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:04:17,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:17,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 08:04:17,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:17,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:17,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:17,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:17,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:17,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:17,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:04:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:17,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:17,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:17,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:04:17,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:17,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-29 08:04:17,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:17,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-29 08:04:17,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:17,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:04:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:17,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:17,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:17,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 08:04:17,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:17,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-29 08:04:17,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:17,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:17,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:17,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:17,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-29 08:04:17,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:17,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2020-10-29 08:04:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:17,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:17,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:17,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:04:17,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:17,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:04:17,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:17,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:17,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:17,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:04:17,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:17,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:17,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2020-10-29 08:04:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:17,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:17,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:17,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 08:04:17,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:17,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:04:17,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:17,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 08:04:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:17,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:17,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 770 [2020-10-29 08:04:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:17,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:18,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:18,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:04:18,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:18,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:04:18,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:18,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:18,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:18,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:04:18,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:18,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:18,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 880 [2020-10-29 08:04:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:18,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:18,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:18,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:04:18,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:18,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:04:18,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:18,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:18,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:18,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:04:18,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:18,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:18,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2458 backedges. 405 proven. 436 refuted. 0 times theorem prover too weak. 1617 trivial. 0 not checked. [2020-10-29 08:04:18,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814942984] [2020-10-29 08:04:18,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:18,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:04:18,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102041566] [2020-10-29 08:04:18,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:04:18,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:18,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:04:18,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:04:18,770 INFO L87 Difference]: Start difference. First operand 5893 states and 6488 transitions. Second operand 7 states. [2020-10-29 08:04:23,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:23,077 INFO L93 Difference]: Finished difference Result 12821 states and 14370 transitions. [2020-10-29 08:04:23,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:04:23,081 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1025 [2020-10-29 08:04:23,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:23,108 INFO L225 Difference]: With dead ends: 12821 [2020-10-29 08:04:23,109 INFO L226 Difference]: Without dead ends: 7610 [2020-10-29 08:04:23,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:04:23,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7610 states. [2020-10-29 08:04:23,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7610 to 7253. [2020-10-29 08:04:23,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7253 states. [2020-10-29 08:04:23,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7253 states to 7253 states and 7936 transitions. [2020-10-29 08:04:23,301 INFO L78 Accepts]: Start accepts. Automaton has 7253 states and 7936 transitions. Word has length 1025 [2020-10-29 08:04:23,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:23,302 INFO L481 AbstractCegarLoop]: Abstraction has 7253 states and 7936 transitions. [2020-10-29 08:04:23,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:04:23,302 INFO L276 IsEmpty]: Start isEmpty. Operand 7253 states and 7936 transitions. [2020-10-29 08:04:23,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1029 [2020-10-29 08:04:23,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:23,329 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:04:23,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:04:23,330 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:23,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:23,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1833532627, now seen corresponding path program 1 times [2020-10-29 08:04:23,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:23,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521640831] [2020-10-29 08:04:23,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:23,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:23,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:24,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:25,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:28,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:28,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1052 [2020-10-29 08:04:28,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:04:28,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-29 08:04:28,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:28,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:28,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:28,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 416 [2020-10-29 08:04:28,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-29 08:04:28,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:28,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:28,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:28,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:28,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:28,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:28,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:04:28,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:28,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:28,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:28,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:28,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:28,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:28,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:28,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:28,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:28,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:04:28,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:28,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 08:04:28,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:28,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:28,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:28,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:28,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:28,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:29,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:04:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:29,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:29,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:29,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-29 08:04:29,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:29,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 08:04:29,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:29,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:29,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:29,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:29,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-29 08:04:29,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:29,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-29 08:04:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:29,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:29,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:29,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 08:04:29,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:29,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-29 08:04:29,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:29,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:29,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:29,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:29,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-29 08:04:29,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:29,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-29 08:04:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:29,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:29,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:29,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:04:29,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:29,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:04:29,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:29,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:29,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:29,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:04:29,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:29,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:29,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 690 [2020-10-29 08:04:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:29,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:29,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:29,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 08:04:29,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:29,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:04:29,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:29,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:29,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:29,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 08:04:29,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:29,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:29,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 773 [2020-10-29 08:04:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:29,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:29,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:29,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:04:29,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:29,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:04:29,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:29,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:29,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:29,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:04:29,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:29,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:29,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 883 [2020-10-29 08:04:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:29,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:29,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:29,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:04:29,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:29,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:04:29,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:29,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:29,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:29,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:04:29,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:29,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:30,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2448 backedges. 400 proven. 436 refuted. 0 times theorem prover too weak. 1612 trivial. 0 not checked. [2020-10-29 08:04:30,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521640831] [2020-10-29 08:04:30,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:30,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:04:30,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456673565] [2020-10-29 08:04:30,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:04:30,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:30,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:04:30,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:04:30,365 INFO L87 Difference]: Start difference. First operand 7253 states and 7936 transitions. Second operand 7 states. [2020-10-29 08:04:34,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:34,649 INFO L93 Difference]: Finished difference Result 16877 states and 18765 transitions. [2020-10-29 08:04:34,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:04:34,650 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1028 [2020-10-29 08:04:34,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:34,682 INFO L225 Difference]: With dead ends: 16877 [2020-10-29 08:04:34,682 INFO L226 Difference]: Without dead ends: 10306 [2020-10-29 08:04:34,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:04:34,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10306 states. [2020-10-29 08:04:34,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10306 to 9963. [2020-10-29 08:04:34,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9963 states. [2020-10-29 08:04:34,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9963 states to 9963 states and 10768 transitions. [2020-10-29 08:04:34,921 INFO L78 Accepts]: Start accepts. Automaton has 9963 states and 10768 transitions. Word has length 1028 [2020-10-29 08:04:34,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:34,922 INFO L481 AbstractCegarLoop]: Abstraction has 9963 states and 10768 transitions. [2020-10-29 08:04:34,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:04:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand 9963 states and 10768 transitions. [2020-10-29 08:04:34,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1126 [2020-10-29 08:04:34,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:34,954 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:04:34,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:04:34,954 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:34,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:34,955 INFO L82 PathProgramCache]: Analyzing trace with hash 406831888, now seen corresponding path program 1 times [2020-10-29 08:04:34,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:34,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [711917559] [2020-10-29 08:04:34,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:35,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:35,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:38,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:40,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:40,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:40,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1147 [2020-10-29 08:04:40,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:04:40,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5101 [2020-10-29 08:04:40,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:40,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:40,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:04:40,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-29 08:04:40,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 402 [2020-10-29 08:04:40,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:40,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:40,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:40,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:40,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:40,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:40,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:04:40,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:40,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:40,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:40,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:40,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:40,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:40,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:40,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:40,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:40,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:04:40,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:40,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:04:40,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:40,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:40,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:40,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:40,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:40,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:40,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:04:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:40,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:40,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:40,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:04:40,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:40,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:04:40,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:40,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:40,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:40,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:40,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:40,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:40,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:04:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:40,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:40,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:40,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:04:40,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:40,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:04:40,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:40,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:40,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:40,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:40,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:40,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:40,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:04:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:40,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:40,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:40,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:04:40,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:40,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 08:04:40,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:40,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:40,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:40,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:40,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:04:40,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:40,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-29 08:04:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:40,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:41,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:41,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:41,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:04:41,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:04:41,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 552 [2020-10-29 08:04:41,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:41,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:41,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:41,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:41,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-29 08:04:41,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:41,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-29 08:04:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:41,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:41,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:41,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:41,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:04:41,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:04:41,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-29 08:04:41,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:41,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:41,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:41,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:41,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 08:04:41,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:42,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 81 proven. 6 refuted. 0 times theorem prover too weak. 2146 trivial. 0 not checked. [2020-10-29 08:04:42,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [711917559] [2020-10-29 08:04:42,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:42,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 08:04:42,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296594559] [2020-10-29 08:04:42,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:04:42,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:42,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:04:42,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:04:42,414 INFO L87 Difference]: Start difference. First operand 9963 states and 10768 transitions. Second operand 5 states. [2020-10-29 08:04:45,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:45,737 INFO L93 Difference]: Finished difference Result 19246 states and 20839 transitions. [2020-10-29 08:04:45,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:04:45,738 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1125 [2020-10-29 08:04:45,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:45,783 INFO L225 Difference]: With dead ends: 19246 [2020-10-29 08:04:45,784 INFO L226 Difference]: Without dead ends: 9965 [2020-10-29 08:04:45,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:04:45,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9965 states. [2020-10-29 08:04:45,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9965 to 9963. [2020-10-29 08:04:45,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9963 states. [2020-10-29 08:04:46,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9963 states to 9963 states and 10598 transitions. [2020-10-29 08:04:46,012 INFO L78 Accepts]: Start accepts. Automaton has 9963 states and 10598 transitions. Word has length 1125 [2020-10-29 08:04:46,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:46,014 INFO L481 AbstractCegarLoop]: Abstraction has 9963 states and 10598 transitions. [2020-10-29 08:04:46,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:04:46,014 INFO L276 IsEmpty]: Start isEmpty. Operand 9963 states and 10598 transitions. [2020-10-29 08:04:46,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1184 [2020-10-29 08:04:46,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:46,048 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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] [2020-10-29 08:04:46,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:04:46,049 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:46,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:46,050 INFO L82 PathProgramCache]: Analyzing trace with hash 829637956, now seen corresponding path program 1 times [2020-10-29 08:04:46,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:46,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521029465] [2020-10-29 08:04:46,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:46,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:46,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:50,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:50,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:51,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:51,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1205 [2020-10-29 08:04:51,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:04:51,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-29 08:04:51,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:51,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:51,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:51,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-29 08:04:51,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:04:51,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:51,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:51,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:51,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:51,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:51,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:51,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:04:51,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:51,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:51,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:51,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:51,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:51,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:51,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:51,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:51,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:51,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:04:51,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:51,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:04:51,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:51,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:51,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:51,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:51,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:51,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:51,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:04:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:51,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:51,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:51,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:04:51,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:51,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:04:51,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:51,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:51,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:51,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:51,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:51,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:51,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:04:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:51,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:51,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:51,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:04:51,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:51,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:04:51,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:51,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:51,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:51,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:51,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:51,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:51,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:04:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:51,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:52,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:52,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:04:52,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:52,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 08:04:52,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:52,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:52,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:52,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:52,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:04:52,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:52,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-29 08:04:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:52,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:52,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:52,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:04:52,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:52,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-10-29 08:04:52,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:52,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:52,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:52,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:52,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:04:52,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:53,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-29 08:04:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:53,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:53,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:53,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-29 08:04:53,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:53,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:04:53,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:53,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:53,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:53,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-29 08:04:53,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:53,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:54,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2474 backedges. 786 proven. 169 refuted. 0 times theorem prover too weak. 1519 trivial. 0 not checked. [2020-10-29 08:04:54,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521029465] [2020-10-29 08:04:54,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:54,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:04:54,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836678409] [2020-10-29 08:04:54,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:04:54,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:54,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:04:54,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:04:54,230 INFO L87 Difference]: Start difference. First operand 9963 states and 10598 transitions. Second operand 7 states. [2020-10-29 08:04:58,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:58,416 INFO L93 Difference]: Finished difference Result 19258 states and 20518 transitions. [2020-10-29 08:04:58,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:04:58,417 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1183 [2020-10-29 08:04:58,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:58,445 INFO L225 Difference]: With dead ends: 19258 [2020-10-29 08:04:58,445 INFO L226 Difference]: Without dead ends: 9977 [2020-10-29 08:04:58,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:04:58,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9977 states. [2020-10-29 08:04:58,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9977 to 9967. [2020-10-29 08:04:58,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9967 states. [2020-10-29 08:04:58,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9967 states to 9967 states and 10597 transitions. [2020-10-29 08:04:58,648 INFO L78 Accepts]: Start accepts. Automaton has 9967 states and 10597 transitions. Word has length 1183 [2020-10-29 08:04:58,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:58,649 INFO L481 AbstractCegarLoop]: Abstraction has 9967 states and 10597 transitions. [2020-10-29 08:04:58,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:04:58,650 INFO L276 IsEmpty]: Start isEmpty. Operand 9967 states and 10597 transitions. [2020-10-29 08:04:58,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1228 [2020-10-29 08:04:58,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:58,683 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:04:58,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:04:58,684 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:58,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:58,684 INFO L82 PathProgramCache]: Analyzing trace with hash 54940004, now seen corresponding path program 1 times [2020-10-29 08:04:58,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:58,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640559005] [2020-10-29 08:04:58,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:58,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:59,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:59,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:03,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:03,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1249 [2020-10-29 08:05:03,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:05:03,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 08:05:03,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:03,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:03,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:03,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 785 [2020-10-29 08:05:03,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:05:03,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:04,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:04,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:04,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:04,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:04,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:04,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:05:04,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:04,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:04,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:04,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:04,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:04,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:04,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:04,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:04,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:04,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:04,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:04,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 08:05:04,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:04,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:04,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:04,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:04,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:04,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:04,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:04,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:05:04,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:04,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:05:04,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:04,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:04,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:04,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:05:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:04,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:04,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:04,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 08:05:04,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:04,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:05:04,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:04,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:04,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:04,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:04,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:04,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:04,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2020-10-29 08:05:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:04,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:04,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:04,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:05:04,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:04,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-29 08:05:04,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:04,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:05:04,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:04,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 777 [2020-10-29 08:05:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:04,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:05,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:05,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:05:05,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:05,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-10-29 08:05:05,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:05,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:05,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:05,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:05,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:05:05,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:05,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1050 [2020-10-29 08:05:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:05,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:05,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:05,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-29 08:05:05,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:05,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 08:05:05,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:05,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-29 08:05:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:05,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:07,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2609 backedges. 830 proven. 169 refuted. 0 times theorem prover too weak. 1610 trivial. 0 not checked. [2020-10-29 08:05:07,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640559005] [2020-10-29 08:05:07,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:07,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:05:07,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25912784] [2020-10-29 08:05:07,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:05:07,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:07,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:05:07,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:05:07,576 INFO L87 Difference]: Start difference. First operand 9967 states and 10597 transitions. Second operand 8 states. [2020-10-29 08:05:12,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:12,126 INFO L93 Difference]: Finished difference Result 19946 states and 21303 transitions. [2020-10-29 08:05:12,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:05:12,127 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1227 [2020-10-29 08:05:12,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:12,155 INFO L225 Difference]: With dead ends: 19946 [2020-10-29 08:05:12,155 INFO L226 Difference]: Without dead ends: 10661 [2020-10-29 08:05:12,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:05:12,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10661 states. [2020-10-29 08:05:12,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10661 to 10651. [2020-10-29 08:05:12,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10651 states. [2020-10-29 08:05:12,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10651 states to 10651 states and 11297 transitions. [2020-10-29 08:05:12,365 INFO L78 Accepts]: Start accepts. Automaton has 10651 states and 11297 transitions. Word has length 1227 [2020-10-29 08:05:12,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:12,366 INFO L481 AbstractCegarLoop]: Abstraction has 10651 states and 11297 transitions. [2020-10-29 08:05:12,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:05:12,366 INFO L276 IsEmpty]: Start isEmpty. Operand 10651 states and 11297 transitions. [2020-10-29 08:05:12,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1275 [2020-10-29 08:05:12,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:12,396 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:05:12,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:05:12,397 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:12,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:12,398 INFO L82 PathProgramCache]: Analyzing trace with hash -985704744, now seen corresponding path program 1 times [2020-10-29 08:05:12,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:12,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335717208] [2020-10-29 08:05:12,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:12,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:13,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:13,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:17,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:17,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1300 [2020-10-29 08:05:17,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:05:17,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 08:05:17,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:17,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:17,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:17,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 616 [2020-10-29 08:05:17,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-29 08:05:17,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:17,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:17,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:17,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:17,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:17,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:17,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:05:17,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:17,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:17,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:17,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:17,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:17,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:17,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:17,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:17,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:17,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:17,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:17,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 08:05:17,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:17,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:17,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:17,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:17,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:17,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:17,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:17,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:17,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:17,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:05:17,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:17,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:05:17,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:17,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:17,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:17,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:17,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:17,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:18,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:05:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:18,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:18,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:18,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:05:18,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:18,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:05:18,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:18,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:18,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:18,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:18,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:18,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:18,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:05:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:18,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:18,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:18,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:05:18,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:18,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:05:18,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:18,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:18,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:18,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:18,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 08:05:18,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:18,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:05:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:18,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:18,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:18,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:05:18,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:18,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-29 08:05:18,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:18,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:18,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-29 08:05:18,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:18,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 870 [2020-10-29 08:05:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:18,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:18,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:18,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:18,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:18,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:05:18,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:18,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:18,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:18,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:05:18,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:18,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:18,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 980 [2020-10-29 08:05:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:18,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:18,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:18,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:05:18,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:18,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 08:05:18,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:18,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:18,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:18,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:05:18,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:18,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:19,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1195 [2020-10-29 08:05:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:19,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:19,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:19,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:05:19,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:19,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:05:19,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:19,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:19,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:19,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:05:19,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:19,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:05:20,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 707 proven. 390 refuted. 0 times theorem prover too weak. 2102 trivial. 0 not checked. [2020-10-29 08:05:20,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335717208] [2020-10-29 08:05:20,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:20,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:20,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93074056] [2020-10-29 08:05:20,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:20,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:20,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:20,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:20,649 INFO L87 Difference]: Start difference. First operand 10651 states and 11297 transitions. Second operand 7 states. [2020-10-29 08:05:24,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:24,818 INFO L93 Difference]: Finished difference Result 21308 states and 22615 transitions. [2020-10-29 08:05:24,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:05:24,819 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1274 [2020-10-29 08:05:24,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:24,849 INFO L225 Difference]: With dead ends: 21308 [2020-10-29 08:05:24,849 INFO L226 Difference]: Without dead ends: 11339 [2020-10-29 08:05:24,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:05:24,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11339 states. [2020-10-29 08:05:25,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11339 to 11331. [2020-10-29 08:05:25,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11331 states. [2020-10-29 08:05:25,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11331 states to 11331 states and 11994 transitions. [2020-10-29 08:05:25,074 INFO L78 Accepts]: Start accepts. Automaton has 11331 states and 11994 transitions. Word has length 1274 [2020-10-29 08:05:25,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:25,075 INFO L481 AbstractCegarLoop]: Abstraction has 11331 states and 11994 transitions. [2020-10-29 08:05:25,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:25,075 INFO L276 IsEmpty]: Start isEmpty. Operand 11331 states and 11994 transitions. [2020-10-29 08:05:25,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1300 [2020-10-29 08:05:25,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:25,111 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:05:25,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:05:25,111 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:25,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:25,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1491738331, now seen corresponding path program 1 times [2020-10-29 08:05:25,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:25,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053805418] [2020-10-29 08:05:25,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:25,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:25,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:26,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:30,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:30,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1323 [2020-10-29 08:05:30,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:05:30,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5068 [2020-10-29 08:05:30,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:30,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:30,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:30,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 639 [2020-10-29 08:05:30,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-29 08:05:30,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:30,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:30,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:30,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:30,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:30,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:30,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:05:30,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:30,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:30,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:30,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:30,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:30,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:30,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:30,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:30,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:30,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:30,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:30,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:05:30,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:30,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:30,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:30,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:30,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:30,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:30,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:30,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:30,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:30,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:05:30,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:30,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:05:30,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:30,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:30,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:30,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:30,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:30,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:30,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:05:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:30,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:30,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:30,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 08:05:30,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:30,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-29 08:05:30,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:30,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:30,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:30,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:30,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-29 08:05:30,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:31,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2020-10-29 08:05:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:31,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:31,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:31,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:05:31,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:31,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-10-29 08:05:31,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:31,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:31,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:31,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:31,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-29 08:05:31,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:31,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 895 [2020-10-29 08:05:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:31,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:31,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:31,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:31,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:31,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:05:31,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:31,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:05:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:31,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:31,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1005 [2020-10-29 08:05:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:31,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:31,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:31,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:05:31,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:31,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 08:05:31,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:31,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:31,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:31,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:05:31,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:31,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:31,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1220 [2020-10-29 08:05:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:31,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:31,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:31,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:05:31,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:31,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:05:31,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:31,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:31,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:31,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:05:31,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:31,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:32,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3013 backedges. 711 proven. 390 refuted. 0 times theorem prover too weak. 1912 trivial. 0 not checked. [2020-10-29 08:05:32,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053805418] [2020-10-29 08:05:32,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:32,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:32,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047387901] [2020-10-29 08:05:32,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:32,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:32,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:32,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:32,775 INFO L87 Difference]: Start difference. First operand 11331 states and 11994 transitions. Second operand 7 states. [2020-10-29 08:05:36,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:36,932 INFO L93 Difference]: Finished difference Result 23682 states and 25306 transitions. [2020-10-29 08:05:36,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:05:36,933 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1299 [2020-10-29 08:05:36,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:36,961 INFO L225 Difference]: With dead ends: 23682 [2020-10-29 08:05:36,962 INFO L226 Difference]: Without dead ends: 13033 [2020-10-29 08:05:36,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:05:36,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13033 states. [2020-10-29 08:05:37,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13033 to 12688. [2020-10-29 08:05:37,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12688 states. [2020-10-29 08:05:37,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12688 states to 12688 states and 13492 transitions. [2020-10-29 08:05:37,211 INFO L78 Accepts]: Start accepts. Automaton has 12688 states and 13492 transitions. Word has length 1299 [2020-10-29 08:05:37,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:37,212 INFO L481 AbstractCegarLoop]: Abstraction has 12688 states and 13492 transitions. [2020-10-29 08:05:37,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:37,212 INFO L276 IsEmpty]: Start isEmpty. Operand 12688 states and 13492 transitions. [2020-10-29 08:05:37,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1411 [2020-10-29 08:05:37,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:37,245 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:05:37,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:05:37,246 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:37,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:37,247 INFO L82 PathProgramCache]: Analyzing trace with hash 2124792370, now seen corresponding path program 1 times [2020-10-29 08:05:37,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:37,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302476275] [2020-10-29 08:05:37,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:37,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:37,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:38,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:40,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:41,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:42,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:42,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1438 [2020-10-29 08:05:42,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:05:42,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 08:05:42,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:42,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:42,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:05:42,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-29 08:05:42,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 332 [2020-10-29 08:05:42,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:42,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:42,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:42,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:42,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:42,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:42,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:05:42,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:42,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:42,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:42,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:42,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:42,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:42,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:42,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:42,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:42,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:42,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:42,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-29 08:05:42,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:42,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:42,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:42,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:42,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-29 08:05:42,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:43,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:43,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:43,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:43,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 333 [2020-10-29 08:05:43,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:43,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-10-29 08:05:43,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:43,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:05:43,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:43,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 333 [2020-10-29 08:05:43,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:43,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:05:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:43,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:43,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:43,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-29 08:05:43,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:43,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-29 08:05:43,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:43,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:43,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 08:05:43,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:43,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-29 08:05:43,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:44,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 577 [2020-10-29 08:05:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:44,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:44,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:44,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:05:44,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:44,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:05:44,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:44,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:44,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:44,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-29 08:05:44,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:44,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:44,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 712 [2020-10-29 08:05:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:44,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:44,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:44,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:05:44,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:44,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:05:44,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:44,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:44,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:44,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:05:44,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:44,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:44,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 856 [2020-10-29 08:05:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:44,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:44,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:44,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:05:44,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:44,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:05:44,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:44,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:44,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:44,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:05:44,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:44,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:44,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 998 [2020-10-29 08:05:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:44,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:44,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:44,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:44,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:44,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:05:44,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:44,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:05:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:44,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:44,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1108 [2020-10-29 08:05:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:44,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:44,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:44,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:05:44,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:44,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-29 08:05:44,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:44,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:44,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:44,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:05:44,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:44,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:44,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:05:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:44,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:44,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:44,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:05:44,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:44,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:05:44,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:44,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:44,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:44,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:44,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:44,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:46,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 305 proven. 812 refuted. 0 times theorem prover too weak. 2040 trivial. 0 not checked. [2020-10-29 08:05:46,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302476275] [2020-10-29 08:05:46,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:46,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:05:46,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63467455] [2020-10-29 08:05:46,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:05:46,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:46,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:05:46,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:05:46,329 INFO L87 Difference]: Start difference. First operand 12688 states and 13492 transitions. Second operand 8 states. [2020-10-29 08:05:47,793 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-29 08:05:51,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:51,163 INFO L93 Difference]: Finished difference Result 25039 states and 26647 transitions. [2020-10-29 08:05:51,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:05:51,164 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1410 [2020-10-29 08:05:51,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:51,192 INFO L225 Difference]: With dead ends: 25039 [2020-10-29 08:05:51,192 INFO L226 Difference]: Without dead ends: 12694 [2020-10-29 08:05:51,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:05:51,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12694 states. [2020-10-29 08:05:51,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12694 to 12018. [2020-10-29 08:05:51,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12018 states. [2020-10-29 08:05:51,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12018 states to 12018 states and 12718 transitions. [2020-10-29 08:05:51,450 INFO L78 Accepts]: Start accepts. Automaton has 12018 states and 12718 transitions. Word has length 1410 [2020-10-29 08:05:51,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:51,451 INFO L481 AbstractCegarLoop]: Abstraction has 12018 states and 12718 transitions. [2020-10-29 08:05:51,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:05:51,452 INFO L276 IsEmpty]: Start isEmpty. Operand 12018 states and 12718 transitions. [2020-10-29 08:05:51,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1465 [2020-10-29 08:05:51,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:51,484 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 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, 5, 5, 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, 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] [2020-10-29 08:05:51,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 08:05:51,484 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:51,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:51,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1351836622, now seen corresponding path program 1 times [2020-10-29 08:05:51,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:51,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882688583] [2020-10-29 08:05:51,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:52,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:52,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:52,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:53,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:56,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:56,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1492 [2020-10-29 08:05:56,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:05:56,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 08:05:56,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:56,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:56,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:56,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 774 [2020-10-29 08:05:56,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:05:56,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:57,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:57,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:57,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:57,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:57,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:57,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:05:57,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:57,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:57,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:57,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:57,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:57,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:57,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:57,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:57,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:57,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:05:57,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:57,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:05:57,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:57,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:57,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:57,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:05:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:57,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:57,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:57,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-29 08:05:57,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:57,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:05:57,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:57,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:57,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:57,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:57,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:57,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:57,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-29 08:05:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:57,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:57,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:57,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-29 08:05:57,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:57,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:05:57,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:57,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:57,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:57,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:57,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:57,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:57,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2020-10-29 08:05:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:57,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:57,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:57,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:05:57,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:57,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 08:05:57,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:57,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:57,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:57,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:57,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 08:05:57,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:57,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 766 [2020-10-29 08:05:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:57,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:57,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:57,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:05:57,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:57,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 08:05:57,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:57,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:57,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:57,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:57,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:05:57,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:57,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 910 [2020-10-29 08:05:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:57,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:57,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:57,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:05:57,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:57,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:05:57,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:57,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:05:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:57,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:57,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1052 [2020-10-29 08:05:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:57,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:57,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:57,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:57,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:57,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 08:05:57,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:57,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:05:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:57,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:57,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1162 [2020-10-29 08:05:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:58,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:58,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:58,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:05:58,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:58,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 08:05:58,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:58,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:05:58,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:58,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:58,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:05:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:58,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:58,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:58,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:05:58,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:58,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:05:58,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:58,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:58,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:58,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:58,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:58,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:59,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4078 backedges. 674 proven. 389 refuted. 0 times theorem prover too weak. 3015 trivial. 0 not checked. [2020-10-29 08:05:59,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882688583] [2020-10-29 08:05:59,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:59,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:59,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012032777] [2020-10-29 08:05:59,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:59,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:59,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:59,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:59,316 INFO L87 Difference]: Start difference. First operand 12018 states and 12718 transitions. Second operand 7 states. [2020-10-29 08:06:04,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:04,126 INFO L93 Difference]: Finished difference Result 28447 states and 30232 transitions. [2020-10-29 08:06:04,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:06:04,129 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1464 [2020-10-29 08:06:04,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:04,164 INFO L225 Difference]: With dead ends: 28447 [2020-10-29 08:06:04,165 INFO L226 Difference]: Without dead ends: 16774 [2020-10-29 08:06:04,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:06:04,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16774 states. [2020-10-29 08:06:04,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16774 to 15416. [2020-10-29 08:06:04,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15416 states. [2020-10-29 08:06:04,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15416 states to 15416 states and 16384 transitions. [2020-10-29 08:06:04,494 INFO L78 Accepts]: Start accepts. Automaton has 15416 states and 16384 transitions. Word has length 1464 [2020-10-29 08:06:04,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:04,495 INFO L481 AbstractCegarLoop]: Abstraction has 15416 states and 16384 transitions. [2020-10-29 08:06:04,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:06:04,496 INFO L276 IsEmpty]: Start isEmpty. Operand 15416 states and 16384 transitions. [2020-10-29 08:06:04,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1478 [2020-10-29 08:06:04,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:04,535 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:04,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 08:06:04,535 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:04,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:04,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1611848538, now seen corresponding path program 1 times [2020-10-29 08:06:04,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:04,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548528050] [2020-10-29 08:06:04,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:05,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:05,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:05,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:10,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:10,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1505 [2020-10-29 08:06:10,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:06:10,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5120 [2020-10-29 08:06:10,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:10,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:10,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:10,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-29 08:06:10,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 08:06:10,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:10,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:10,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:10,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:10,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:10,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:10,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:06:10,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:10,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:10,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:10,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:10,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:10,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:10,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:10,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:10,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:10,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:06:10,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:10,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:06:10,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:10,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:10,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:10,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:10,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:10,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:10,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:06:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:10,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:10,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:10,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:06:10,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:10,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-29 08:06:10,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:10,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:10,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:10,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:10,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-29 08:06:10,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:10,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:06:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:10,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:10,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:10,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:06:10,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:10,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 08:06:10,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:10,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:10,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:10,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:10,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 08:06:10,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:10,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:06:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:10,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:10,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:10,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:06:10,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:10,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 08:06:10,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:10,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:10,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:10,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-29 08:06:10,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:10,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:10,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-29 08:06:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:10,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:10,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:10,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 08:06:10,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:10,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:06:10,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:10,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:10,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:10,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-29 08:06:10,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:10,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:10,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2020-10-29 08:06:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:11,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:11,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:11,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 08:06:11,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:11,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 08:06:11,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:11,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:11,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-29 08:06:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:11,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:11,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2020-10-29 08:06:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:11,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:11,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:11,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:06:11,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:11,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:06:11,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:11,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:06:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:11,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:11,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1175 [2020-10-29 08:06:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:11,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:11,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:11,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:06:11,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:11,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 08:06:11,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:11,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:11,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:11,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:06:11,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:11,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:11,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:06:11,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:11,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:11,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:11,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:06:11,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:11,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:06:11,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:11,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:11,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:11,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:11,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:11,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:12,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3964 backedges. 353 proven. 567 refuted. 0 times theorem prover too weak. 3044 trivial. 0 not checked. [2020-10-29 08:06:12,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [548528050] [2020-10-29 08:06:12,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:06:12,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:06:12,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274419198] [2020-10-29 08:06:12,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:06:12,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:06:12,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:06:12,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:06:12,714 INFO L87 Difference]: Start difference. First operand 15416 states and 16384 transitions. Second operand 8 states. [2020-10-29 08:06:17,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:06:17,653 INFO L93 Difference]: Finished difference Result 32870 states and 35012 transitions. [2020-10-29 08:06:17,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:06:17,654 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1477 [2020-10-29 08:06:17,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:06:17,682 INFO L225 Difference]: With dead ends: 32870 [2020-10-29 08:06:17,682 INFO L226 Difference]: Without dead ends: 17799 [2020-10-29 08:06:17,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:06:17,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17799 states. [2020-10-29 08:06:18,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17799 to 17453. [2020-10-29 08:06:18,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17453 states. [2020-10-29 08:06:18,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17453 states to 17453 states and 18533 transitions. [2020-10-29 08:06:18,034 INFO L78 Accepts]: Start accepts. Automaton has 17453 states and 18533 transitions. Word has length 1477 [2020-10-29 08:06:18,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:06:18,035 INFO L481 AbstractCegarLoop]: Abstraction has 17453 states and 18533 transitions. [2020-10-29 08:06:18,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:06:18,036 INFO L276 IsEmpty]: Start isEmpty. Operand 17453 states and 18533 transitions. [2020-10-29 08:06:18,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1480 [2020-10-29 08:06:18,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:06:18,071 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:06:18,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 08:06:18,071 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:06:18,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:06:18,072 INFO L82 PathProgramCache]: Analyzing trace with hash -593069410, now seen corresponding path program 1 times [2020-10-29 08:06:18,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:06:18,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256979621] [2020-10-29 08:06:18,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:06:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:18,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:18,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:19,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:23,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:23,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1507 [2020-10-29 08:06:23,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:06:23,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5232 [2020-10-29 08:06:23,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:23,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:23,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:23,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-29 08:06:23,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 08:06:23,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:23,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:06:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:23,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:23,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:23,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:06:23,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:23,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:06:23,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:23,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:23,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:23,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:23,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:23,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:06:23,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:06:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:23,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:23,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:23,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:06:23,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:23,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 08:06:23,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:23,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:23,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:23,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:23,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:23,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:23,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:06:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:24,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:24,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:24,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:06:24,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:24,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-29 08:06:24,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:24,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:24,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:06:24,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:06:24,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-29 08:06:24,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:24,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:06:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:24,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:24,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:24,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:06:24,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:24,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-29 08:06:24,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:24,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:06:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:06:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 08:06:24,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:06:24,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:06:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:06:24,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:06:24,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:06:24,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:06:24,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:06:24,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 08:06:24,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:06:24,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:06:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:06:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-29 08:06:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:06:24,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0