/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label15.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:13:50,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:13:50,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:13:50,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:13:50,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:13:50,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:13:50,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:13:50,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:13:50,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:13:50,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:13:50,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:13:50,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:13:50,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:13:50,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:13:50,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:13:50,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:13:50,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:13:50,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:13:50,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:13:50,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:13:50,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:13:50,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:13:50,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:13:50,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:13:50,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:13:50,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:13:50,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:13:50,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:13:50,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:13:50,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:13:50,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:13:50,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:13:50,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:13:50,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:13:50,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:13:50,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:13:50,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:13:50,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:13:50,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:13:50,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:13:50,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:13:50,383 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 [2020-10-14 04:13:50,413 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:13:50,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:13:50,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:13:50,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:13:50,415 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:13:50,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:13:50,415 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:13:50,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:13:50,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:13:50,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:13:50,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:13:50,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:13:50,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:13:50,416 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:13:50,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:13:50,417 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:13:50,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:13:50,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:13:50,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:13:50,417 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:13:50,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:13:50,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:13:50,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:13:50,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:13:50,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:13:50,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:13:50,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:13:50,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:13:50,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:13:50,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 04:13:50,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:13:50,751 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:13:50,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:13:50,761 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:13:50,761 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:13:50,762 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label15.c [2020-10-14 04:13:50,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2de187310/4a785551dfa64c12bc1d452ed6111a20/FLAG97e023b38 [2020-10-14 04:13:51,616 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:13:51,617 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label15.c [2020-10-14 04:13:51,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2de187310/4a785551dfa64c12bc1d452ed6111a20/FLAG97e023b38 [2020-10-14 04:13:51,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2de187310/4a785551dfa64c12bc1d452ed6111a20 [2020-10-14 04:13:51,778 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:13:51,780 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:13:51,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:13:51,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:13:51,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:13:51,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:13:51" (1/1) ... [2020-10-14 04:13:51,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70996f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:51, skipping insertion in model container [2020-10-14 04:13:51,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:13:51" (1/1) ... [2020-10-14 04:13:51,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:13:51,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:13:53,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:13:53,134 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:13:53,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:13:53,602 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:13:53,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:53 WrapperNode [2020-10-14 04:13:53,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:13:53,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:13:53,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:13:53,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:13:53,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:53" (1/1) ... [2020-10-14 04:13:53,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:53" (1/1) ... [2020-10-14 04:13:53,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:53" (1/1) ... [2020-10-14 04:13:53,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:53" (1/1) ... [2020-10-14 04:13:53,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:53" (1/1) ... [2020-10-14 04:13:53,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:53" (1/1) ... [2020-10-14 04:13:53,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:53" (1/1) ... [2020-10-14 04:13:53,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:13:53,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:13:53,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:13:53,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:13:53,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:53" (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 [2020-10-14 04:13:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:13:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:13:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 04:13:53,972 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 04:13:53,972 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 04:13:53,973 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:13:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 04:13:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 04:13:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 04:13:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:13:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:13:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:13:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:13:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:13:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:14:00,076 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:14:00,076 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 04:14:00,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:14:00 BoogieIcfgContainer [2020-10-14 04:14:00,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:14:00,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:14:00,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:14:00,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:14:00,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:13:51" (1/3) ... [2020-10-14 04:14:00,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c7e43e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:14:00, skipping insertion in model container [2020-10-14 04:14:00,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:13:53" (2/3) ... [2020-10-14 04:14:00,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c7e43e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:14:00, skipping insertion in model container [2020-10-14 04:14:00,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:14:00" (3/3) ... [2020-10-14 04:14:00,101 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label15.c [2020-10-14 04:14:00,112 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:14:00,121 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:14:00,137 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:14:00,167 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:14:00,168 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:14:00,168 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:14:00,168 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:14:00,168 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:14:00,168 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:14:00,169 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:14:00,169 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:14:00,206 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 04:14:00,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-14 04:14:00,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:14:00,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:14:00,217 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:14:00,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:14:00,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1584923938, now seen corresponding path program 1 times [2020-10-14 04:14:00,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:14:00,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520995779] [2020-10-14 04:14:00,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:14:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:00,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:00,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:00,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 04:14:00,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:00,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-10-14 04:14:00,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:00,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:00,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:14:00,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:14:00,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 04:14:00,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:14:01,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:01,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:01,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:01,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:01,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:01,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 04:14:01,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:01,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:01,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:01,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:14:01,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:14:01,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:14:01,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520995779] [2020-10-14 04:14:01,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:14:01,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 04:14:01,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921776123] [2020-10-14 04:14:01,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:14:01,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:01,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:14:01,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:14:01,129 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-14 04:14:10,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:14:10,160 INFO L93 Difference]: Finished difference Result 2286 states and 4364 transitions. [2020-10-14 04:14:10,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:14:10,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-10-14 04:14:10,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:14:10,194 INFO L225 Difference]: With dead ends: 2286 [2020-10-14 04:14:10,194 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 04:14:10,209 INFO L675 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 [2020-10-14 04:14:10,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 04:14:10,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1428. [2020-10-14 04:14:10,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-10-14 04:14:10,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2262 transitions. [2020-10-14 04:14:10,374 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2262 transitions. Word has length 41 [2020-10-14 04:14:10,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:14:10,375 INFO L479 AbstractCegarLoop]: Abstraction has 1428 states and 2262 transitions. [2020-10-14 04:14:10,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:14:10,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2262 transitions. [2020-10-14 04:14:10,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 04:14:10,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:14:10,381 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:14:10,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:14:10,382 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:14:10,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:14:10,383 INFO L82 PathProgramCache]: Analyzing trace with hash 898324231, now seen corresponding path program 1 times [2020-10-14 04:14:10,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:14:10,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164519148] [2020-10-14 04:14:10,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:14:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:10,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:10,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:11,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:11,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 04:14:11,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:14:11,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 821 [2020-10-14 04:14:11,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:11,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:11,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:11,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 04:14:11,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 04:14:11,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:11,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:11,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:11,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:11,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:11,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:11,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:14:11,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:11,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:11,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:11,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:11,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:11,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:14:11,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:14:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:11,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:11,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:11,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 04:14:11,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:11,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 04:14:11,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:11,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:11,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:11,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:11,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 04:14:11,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:11,528 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:14:11,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164519148] [2020-10-14 04:14:11,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:14:11,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:14:11,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154860375] [2020-10-14 04:14:11,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:14:11,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:11,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:14:11,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:14:11,537 INFO L87 Difference]: Start difference. First operand 1428 states and 2262 transitions. Second operand 5 states. [2020-10-14 04:14:19,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:14:19,520 INFO L93 Difference]: Finished difference Result 4274 states and 6822 transitions. [2020-10-14 04:14:19,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:14:19,527 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-10-14 04:14:19,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:14:19,543 INFO L225 Difference]: With dead ends: 4274 [2020-10-14 04:14:19,544 INFO L226 Difference]: Without dead ends: 2852 [2020-10-14 04:14:19,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:14:19,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2020-10-14 04:14:19,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2848. [2020-10-14 04:14:19,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2848 states. [2020-10-14 04:14:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 4072 transitions. [2020-10-14 04:14:19,643 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 4072 transitions. Word has length 110 [2020-10-14 04:14:19,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:14:19,647 INFO L479 AbstractCegarLoop]: Abstraction has 2848 states and 4072 transitions. [2020-10-14 04:14:19,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:14:19,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 4072 transitions. [2020-10-14 04:14:19,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-14 04:14:19,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:14:19,665 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 04:14:19,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:14:19,666 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:14:19,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:14:19,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1043983998, now seen corresponding path program 1 times [2020-10-14 04:14:19,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:14:19,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950248813] [2020-10-14 04:14:19,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:14:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:19,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:19,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:20,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:20,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 04:14:20,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:14:20,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1011 [2020-10-14 04:14:20,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:20,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:20,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:20,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 04:14:20,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 04:14:20,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:20,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:20,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:20,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:20,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:20,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:20,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:14:20,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:20,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:20,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:20,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:20,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:20,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:20,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:14:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:20,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:21,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:21,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 04:14:21,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:21,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-14 04:14:21,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:21,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:21,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:21,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:21,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 04:14:21,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:21,178 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:14:21,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950248813] [2020-10-14 04:14:21,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:14:21,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 04:14:21,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041385906] [2020-10-14 04:14:21,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:14:21,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:21,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:14:21,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:14:21,183 INFO L87 Difference]: Start difference. First operand 2848 states and 4072 transitions. Second operand 6 states. [2020-10-14 04:14:33,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:14:33,001 INFO L93 Difference]: Finished difference Result 8534 states and 12820 transitions. [2020-10-14 04:14:33,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:14:33,004 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 173 [2020-10-14 04:14:33,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:14:33,041 INFO L225 Difference]: With dead ends: 8534 [2020-10-14 04:14:33,041 INFO L226 Difference]: Without dead ends: 5692 [2020-10-14 04:14:33,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:14:33,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5692 states. [2020-10-14 04:14:33,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5692 to 5688. [2020-10-14 04:14:33,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5688 states. [2020-10-14 04:14:33,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5688 states to 5688 states and 8240 transitions. [2020-10-14 04:14:33,226 INFO L78 Accepts]: Start accepts. Automaton has 5688 states and 8240 transitions. Word has length 173 [2020-10-14 04:14:33,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:14:33,227 INFO L479 AbstractCegarLoop]: Abstraction has 5688 states and 8240 transitions. [2020-10-14 04:14:33,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:14:33,227 INFO L276 IsEmpty]: Start isEmpty. Operand 5688 states and 8240 transitions. [2020-10-14 04:14:33,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-14 04:14:33,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:14:33,241 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:14:33,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:14:33,241 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:14:33,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:14:33,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1638786251, now seen corresponding path program 1 times [2020-10-14 04:14:33,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:14:33,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583598645] [2020-10-14 04:14:33,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:14:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:33,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:33,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:34,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:35,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:35,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-14 04:14:35,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:14:35,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1974 [2020-10-14 04:14:35,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:35,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:35,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:35,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 04:14:35,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 04:14:35,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:35,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:35,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:35,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:35,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:35,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:35,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:14:35,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:35,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:35,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:35,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:35,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:35,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:35,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:14:35,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:35,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:35,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:35,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 04:14:35,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:35,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 04:14:35,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:35,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:35,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:35,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:35,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 04:14:35,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:35,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 04:14:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:35,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:35,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:35,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:14:35,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:35,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 04:14:35,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:35,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:35,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:35,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:14:35,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 04:14:35,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:35,603 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:14:35,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1583598645] [2020-10-14 04:14:35,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:14:35,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:14:35,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938103838] [2020-10-14 04:14:35,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:14:35,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:35,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:14:35,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:14:35,611 INFO L87 Difference]: Start difference. First operand 5688 states and 8240 transitions. Second operand 7 states. [2020-10-14 04:14:46,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:14:46,718 INFO L93 Difference]: Finished difference Result 17247 states and 25507 transitions. [2020-10-14 04:14:46,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:14:46,719 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 180 [2020-10-14 04:14:46,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:14:46,786 INFO L225 Difference]: With dead ends: 17247 [2020-10-14 04:14:46,786 INFO L226 Difference]: Without dead ends: 11565 [2020-10-14 04:14:46,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:14:46,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11565 states. [2020-10-14 04:14:47,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11565 to 7992. [2020-10-14 04:14:47,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7992 states. [2020-10-14 04:14:47,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7992 states to 7992 states and 11107 transitions. [2020-10-14 04:14:47,073 INFO L78 Accepts]: Start accepts. Automaton has 7992 states and 11107 transitions. Word has length 180 [2020-10-14 04:14:47,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:14:47,074 INFO L479 AbstractCegarLoop]: Abstraction has 7992 states and 11107 transitions. [2020-10-14 04:14:47,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:14:47,074 INFO L276 IsEmpty]: Start isEmpty. Operand 7992 states and 11107 transitions. [2020-10-14 04:14:47,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-14 04:14:47,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:14:47,078 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:14:47,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:14:47,079 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:14:47,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:14:47,079 INFO L82 PathProgramCache]: Analyzing trace with hash 118739491, now seen corresponding path program 1 times [2020-10-14 04:14:47,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:14:47,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821748199] [2020-10-14 04:14:47,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:14:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:47,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:47,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:48,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:50,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:50,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 04:14:50,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:14:50,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3143 [2020-10-14 04:14:50,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:50,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:50,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:50,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:14:50,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 04:14:50,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:50,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:50,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:50,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:50,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:50,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:50,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:14:50,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:50,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:50,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:50,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:50,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:50,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 04:14:50,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:14:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:50,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:50,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:50,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:14:50,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:50,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 04:14:50,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:50,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:50,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:50,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:50,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:14:50,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:50,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:14:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:50,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:50,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:50,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 04:14:50,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:50,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 04:14:50,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:50,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:50,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:50,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:14:50,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 04:14:50,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:50,808 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 138 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:14:50,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821748199] [2020-10-14 04:14:50,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:14:50,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:14:50,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997085498] [2020-10-14 04:14:50,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:14:50,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:50,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:14:50,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:14:50,811 INFO L87 Difference]: Start difference. First operand 7992 states and 11107 transitions. Second operand 7 states. [2020-10-14 04:15:04,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:15:04,935 INFO L93 Difference]: Finished difference Result 16877 states and 23488 transitions. [2020-10-14 04:15:04,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:15:04,937 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2020-10-14 04:15:04,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:15:04,984 INFO L225 Difference]: With dead ends: 16877 [2020-10-14 04:15:04,984 INFO L226 Difference]: Without dead ends: 8165 [2020-10-14 04:15:05,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:15:05,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8165 states. [2020-10-14 04:15:05,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8165 to 8101. [2020-10-14 04:15:05,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8101 states. [2020-10-14 04:15:05,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8101 states to 8101 states and 9651 transitions. [2020-10-14 04:15:05,208 INFO L78 Accepts]: Start accepts. Automaton has 8101 states and 9651 transitions. Word has length 236 [2020-10-14 04:15:05,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:15:05,209 INFO L479 AbstractCegarLoop]: Abstraction has 8101 states and 9651 transitions. [2020-10-14 04:15:05,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:15:05,209 INFO L276 IsEmpty]: Start isEmpty. Operand 8101 states and 9651 transitions. [2020-10-14 04:15:05,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-14 04:15:05,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:15:05,214 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:15:05,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:15:05,214 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:15:05,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:15:05,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1877658695, now seen corresponding path program 1 times [2020-10-14 04:15:05,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:15:05,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232498615] [2020-10-14 04:15:05,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:15:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:05,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:05,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:06,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:07,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:09,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:09,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-10-14 04:15:09,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:15:09,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3939 [2020-10-14 04:15:09,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:09,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:09,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:09,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:15:09,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 04:15:09,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:09,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:15:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:09,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:09,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:09,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:15:09,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:09,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:15:09,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:09,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:09,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:09,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:09,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:15:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:09,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:09,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:09,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:15:09,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:09,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 04:15:09,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:09,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:09,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:15:09,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:09,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:15:09,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:09,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:15:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:09,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:09,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:09,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 04:15:09,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:09,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 04:15:09,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:09,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:09,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:09,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:15:09,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 04:15:09,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:09,949 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 172 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:15:09,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [232498615] [2020-10-14 04:15:09,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:15:09,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:15:09,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517571227] [2020-10-14 04:15:09,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:15:09,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:15:09,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:15:09,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:15:09,954 INFO L87 Difference]: Start difference. First operand 8101 states and 9651 transitions. Second operand 7 states. [2020-10-14 04:15:21,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:15:21,054 INFO L93 Difference]: Finished difference Result 21887 states and 26693 transitions. [2020-10-14 04:15:21,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:15:21,055 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 270 [2020-10-14 04:15:21,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:15:21,095 INFO L225 Difference]: With dead ends: 21887 [2020-10-14 04:15:21,096 INFO L226 Difference]: Without dead ends: 13792 [2020-10-14 04:15:21,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:15:21,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13792 states. [2020-10-14 04:15:21,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13792 to 13769. [2020-10-14 04:15:21,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13769 states. [2020-10-14 04:15:21,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13769 states to 13769 states and 16182 transitions. [2020-10-14 04:15:21,384 INFO L78 Accepts]: Start accepts. Automaton has 13769 states and 16182 transitions. Word has length 270 [2020-10-14 04:15:21,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:15:21,385 INFO L479 AbstractCegarLoop]: Abstraction has 13769 states and 16182 transitions. [2020-10-14 04:15:21,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:15:21,385 INFO L276 IsEmpty]: Start isEmpty. Operand 13769 states and 16182 transitions. [2020-10-14 04:15:21,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-10-14 04:15:21,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:15:21,393 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 04:15:21,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:15:21,394 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:15:21,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:15:21,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1565594402, now seen corresponding path program 1 times [2020-10-14 04:15:21,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:15:21,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899634570] [2020-10-14 04:15:21,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:15:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:21,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:21,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:21,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:25,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:26,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:26,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-10-14 04:15:26,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:15:26,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 04:15:26,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:26,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:26,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:26,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 04:15:26,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 04:15:26,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:26,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:15:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:26,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:26,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:26,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:15:26,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:26,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:15:26,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:26,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:26,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:26,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:26,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:26,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:15:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:26,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:26,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:26,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:15:26,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:26,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 04:15:26,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:26,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:26,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:15:26,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:26,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 04:15:26,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:26,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-14 04:15:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:26,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:26,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:26,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 04:15:26,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:26,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 04:15:26,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:26,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:26,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:26,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:15:26,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 04:15:26,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:27,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-14 04:15:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:27,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:27,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:27,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:15:27,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:27,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 04:15:27,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:27,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:27,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:27,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 04:15:27,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:27,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:27,149 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 209 proven. 69 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-14 04:15:27,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899634570] [2020-10-14 04:15:27,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:15:27,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:15:27,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036161111] [2020-10-14 04:15:27,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:15:27,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:15:27,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:15:27,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:15:27,153 INFO L87 Difference]: Start difference. First operand 13769 states and 16182 transitions. Second operand 7 states. [2020-10-14 04:15:39,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:15:39,318 INFO L93 Difference]: Finished difference Result 38058 states and 47533 transitions. [2020-10-14 04:15:39,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:15:39,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 339 [2020-10-14 04:15:39,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:15:39,427 INFO L225 Difference]: With dead ends: 38058 [2020-10-14 04:15:39,427 INFO L226 Difference]: Without dead ends: 23575 [2020-10-14 04:15:39,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:15:39,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23575 states. [2020-10-14 04:15:40,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23575 to 23349. [2020-10-14 04:15:40,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23349 states. [2020-10-14 04:15:40,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23349 states to 23349 states and 27314 transitions. [2020-10-14 04:15:40,157 INFO L78 Accepts]: Start accepts. Automaton has 23349 states and 27314 transitions. Word has length 339 [2020-10-14 04:15:40,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:15:40,158 INFO L479 AbstractCegarLoop]: Abstraction has 23349 states and 27314 transitions. [2020-10-14 04:15:40,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:15:40,159 INFO L276 IsEmpty]: Start isEmpty. Operand 23349 states and 27314 transitions. [2020-10-14 04:15:40,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-10-14 04:15:40,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:15:40,168 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:15:40,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:15:40,169 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:15:40,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:15:40,170 INFO L82 PathProgramCache]: Analyzing trace with hash -888928190, now seen corresponding path program 1 times [2020-10-14 04:15:40,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:15:40,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307694186] [2020-10-14 04:15:40,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:15:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:40,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:40,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:41,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:43,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:43,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 365 [2020-10-14 04:15:43,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:15:43,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3531 [2020-10-14 04:15:43,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:43,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:43,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:43,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 244 [2020-10-14 04:15:43,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 04:15:43,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:43,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:15:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:43,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:43,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:43,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:15:43,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:43,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:15:43,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:43,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:43,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:43,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:43,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:43,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:15:43,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:15:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:43,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:44,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:44,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-14 04:15:44,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:44,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 04:15:44,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:44,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:15:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 229 [2020-10-14 04:15:44,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:44,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-14 04:15:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:44,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:44,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:44,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 04:15:44,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:44,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 04:15:44,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:44,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:44,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:44,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:15:44,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 04:15:44,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:44,396 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:15:44,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307694186] [2020-10-14 04:15:44,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:15:44,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:15:44,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428377007] [2020-10-14 04:15:44,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:15:44,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:15:44,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:15:44,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:15:44,399 INFO L87 Difference]: Start difference. First operand 23349 states and 27314 transitions. Second operand 7 states. [2020-10-14 04:15:55,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:15:55,426 INFO L93 Difference]: Finished difference Result 59848 states and 72199 transitions. [2020-10-14 04:15:55,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:15:55,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 353 [2020-10-14 04:15:55,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:15:55,521 INFO L225 Difference]: With dead ends: 59848 [2020-10-14 04:15:55,521 INFO L226 Difference]: Without dead ends: 35671 [2020-10-14 04:15:55,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:15:55,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35671 states. [2020-10-14 04:15:57,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35671 to 35564. [2020-10-14 04:15:57,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35564 states. [2020-10-14 04:15:57,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35564 states to 35564 states and 41004 transitions. [2020-10-14 04:15:57,424 INFO L78 Accepts]: Start accepts. Automaton has 35564 states and 41004 transitions. Word has length 353 [2020-10-14 04:15:57,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:15:57,424 INFO L479 AbstractCegarLoop]: Abstraction has 35564 states and 41004 transitions. [2020-10-14 04:15:57,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:15:57,425 INFO L276 IsEmpty]: Start isEmpty. Operand 35564 states and 41004 transitions. [2020-10-14 04:15:57,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2020-10-14 04:15:57,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:15:57,438 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:15:57,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:15:57,438 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:15:57,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:15:57,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1400226713, now seen corresponding path program 1 times [2020-10-14 04:15:57,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:15:57,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215765068] [2020-10-14 04:15:57,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:15:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:57,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:58,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:58,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:01,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:02,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:02,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 464 [2020-10-14 04:16:02,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:16:02,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4896 [2020-10-14 04:16:02,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:02,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:02,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:02,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 316 [2020-10-14 04:16:02,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 04:16:02,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:02,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:16:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:02,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:02,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:02,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:16:02,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:02,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:16:02,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:02,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:02,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:02,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:02,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:02,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:02,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:16:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:02,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:02,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:02,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 04:16:02,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:02,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-14 04:16:02,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:02,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:02,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:02,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:02,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 04:16:02,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:02,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:16:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:02,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:02,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:02,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 04:16:02,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:02,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 04:16:02,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:02,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:02,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:02,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:02,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 04:16:02,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:03,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 04:16:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:03,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:03,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:03,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 04:16:03,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:03,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 04:16:03,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:03,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:03,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:03,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:16:03,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 04:16:03,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:03,560 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 167 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:16:03,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215765068] [2020-10-14 04:16:03,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:16:03,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:16:03,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394463981] [2020-10-14 04:16:03,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:16:03,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:16:03,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:16:03,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:16:03,578 INFO L87 Difference]: Start difference. First operand 35564 states and 41004 transitions. Second operand 8 states. [2020-10-14 04:16:12,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:16:12,430 INFO L93 Difference]: Finished difference Result 78306 states and 90193 transitions. [2020-10-14 04:16:12,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 04:16:12,431 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 450 [2020-10-14 04:16:12,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:16:12,527 INFO L225 Difference]: With dead ends: 78306 [2020-10-14 04:16:12,527 INFO L226 Difference]: Without dead ends: 42748 [2020-10-14 04:16:12,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:16:12,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42748 states. [2020-10-14 04:16:13,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42748 to 42696. [2020-10-14 04:16:13,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42696 states. [2020-10-14 04:16:13,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42696 states to 42696 states and 47216 transitions. [2020-10-14 04:16:13,106 INFO L78 Accepts]: Start accepts. Automaton has 42696 states and 47216 transitions. Word has length 450 [2020-10-14 04:16:13,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:16:13,107 INFO L479 AbstractCegarLoop]: Abstraction has 42696 states and 47216 transitions. [2020-10-14 04:16:13,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:16:13,107 INFO L276 IsEmpty]: Start isEmpty. Operand 42696 states and 47216 transitions. [2020-10-14 04:16:13,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-10-14 04:16:13,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:16:13,117 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:16:13,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:16:13,118 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:16:13,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:16:13,118 INFO L82 PathProgramCache]: Analyzing trace with hash -981783036, now seen corresponding path program 1 times [2020-10-14 04:16:13,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:16:13,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153720423] [2020-10-14 04:16:13,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:16:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:13,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:13,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:13,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:18,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:18,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 466 [2020-10-14 04:16:18,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:16:18,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 04:16:18,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:18,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:18,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:18,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 323 [2020-10-14 04:16:18,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 04:16:18,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:18,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:16:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:18,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:18,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:18,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:16:18,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:18,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:16:18,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:18,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:18,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:18,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:18,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:18,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:18,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:16:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:18,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:18,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:18,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 04:16:18,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:18,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 04:16:18,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:18,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:18,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:18,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:18,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 308 [2020-10-14 04:16:18,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:18,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:16:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:18,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:18,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:18,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 04:16:18,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:18,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:16:18,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:18,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:18,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:18,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:18,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 04:16:18,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:18,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-10-14 04:16:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:18,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:18,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:18,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 04:16:18,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 04:16:18,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:18,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:16:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 04:16:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:19,086 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:16:19,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153720423] [2020-10-14 04:16:19,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:16:19,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:16:19,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138973346] [2020-10-14 04:16:19,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:16:19,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:16:19,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:16:19,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:16:19,089 INFO L87 Difference]: Start difference. First operand 42696 states and 47216 transitions. Second operand 7 states. [2020-10-14 04:16:31,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:16:31,631 INFO L93 Difference]: Finished difference Result 88273 states and 97738 transitions. [2020-10-14 04:16:31,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:16:31,633 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 452 [2020-10-14 04:16:31,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:16:31,732 INFO L225 Difference]: With dead ends: 88273 [2020-10-14 04:16:31,732 INFO L226 Difference]: Without dead ends: 45583 [2020-10-14 04:16:31,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:16:31,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45583 states. [2020-10-14 04:16:32,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45583 to 45542. [2020-10-14 04:16:32,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45542 states. [2020-10-14 04:16:32,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45542 states to 45542 states and 50306 transitions. [2020-10-14 04:16:32,389 INFO L78 Accepts]: Start accepts. Automaton has 45542 states and 50306 transitions. Word has length 452 [2020-10-14 04:16:32,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:16:32,390 INFO L479 AbstractCegarLoop]: Abstraction has 45542 states and 50306 transitions. [2020-10-14 04:16:32,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:16:32,391 INFO L276 IsEmpty]: Start isEmpty. Operand 45542 states and 50306 transitions. [2020-10-14 04:16:32,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 994 [2020-10-14 04:16:32,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:16:32,411 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:16:32,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:16:32,412 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:16:32,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:16:32,412 INFO L82 PathProgramCache]: Analyzing trace with hash 739408400, now seen corresponding path program 1 times [2020-10-14 04:16:32,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:16:32,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111923563] [2020-10-14 04:16:32,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:16:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:32,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:32,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:35,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:35,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1013 [2020-10-14 04:16:35,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:16:35,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2736 [2020-10-14 04:16:35,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:35,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:35,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:35,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 04:16:35,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 04:16:35,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:35,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:16:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:35,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:35,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:35,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:16:35,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:35,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:16:35,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:35,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:35,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:35,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:35,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:35,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:35,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:16:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:35,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:35,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:35,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 04:16:35,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:35,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 04:16:35,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:35,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:35,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:35,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:35,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:35,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:35,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:16:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:35,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:35,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:35,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 04:16:35,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:35,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 04:16:35,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:35,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:35,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:35,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:35,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:35,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:35,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 04:16:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:35,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:35,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:35,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 04:16:35,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:35,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:16:35,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:35,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:35,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:35,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:35,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:35,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:16:35,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 04:16:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:36,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:36,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:36,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 04:16:36,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:36,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-10-14 04:16:36,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:36,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:36,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:36,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:36,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 04:16:36,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:36,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:16:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:36,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:36,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:36,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 04:16:36,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:36,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 04:16:36,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:36,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:36,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:36,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:36,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 04:16:36,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:36,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 04:16:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:36,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:36,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:36,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 04:16:36,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:36,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 04:16:36,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:36,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:36,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:36,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:16:36,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 04:16:36,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:37,031 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 340 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-14 04:16:37,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111923563] [2020-10-14 04:16:37,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:16:37,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:16:37,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654306739] [2020-10-14 04:16:37,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:16:37,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:16:37,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:16:37,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:16:37,034 INFO L87 Difference]: Start difference. First operand 45542 states and 50306 transitions. Second operand 7 states. [2020-10-14 04:16:51,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:16:51,019 INFO L93 Difference]: Finished difference Result 99635 states and 111266 transitions. [2020-10-14 04:16:51,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:16:51,020 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 993 [2020-10-14 04:16:51,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:16:51,161 INFO L225 Difference]: With dead ends: 99635 [2020-10-14 04:16:51,161 INFO L226 Difference]: Without dead ends: 54089 [2020-10-14 04:16:51,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:16:51,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54089 states. [2020-10-14 04:16:51,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54089 to 51909. [2020-10-14 04:16:51,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51909 states. [2020-10-14 04:16:51,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51909 states to 51909 states and 57639 transitions. [2020-10-14 04:16:51,997 INFO L78 Accepts]: Start accepts. Automaton has 51909 states and 57639 transitions. Word has length 993 [2020-10-14 04:16:51,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:16:51,999 INFO L479 AbstractCegarLoop]: Abstraction has 51909 states and 57639 transitions. [2020-10-14 04:16:51,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:16:51,999 INFO L276 IsEmpty]: Start isEmpty. Operand 51909 states and 57639 transitions. [2020-10-14 04:16:52,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1116 [2020-10-14 04:16:52,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:16:52,020 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:16:52,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:16:52,021 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:16:52,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:16:52,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1758963536, now seen corresponding path program 1 times [2020-10-14 04:16:52,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:16:52,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144070458] [2020-10-14 04:16:52,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:16:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:52,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:53,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:56,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:56,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1137 [2020-10-14 04:16:56,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:16:56,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4043 [2020-10-14 04:16:56,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:56,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-14 04:16:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 04:16:56,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:56,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:16:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:56,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:56,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:56,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:16:56,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:56,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:16:56,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:56,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:56,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:56,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:56,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:56,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:56,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:16:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:56,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:56,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:56,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 04:16:56,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:56,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 04:16:56,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:56,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:56,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:56,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:56,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:56,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:56,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:16:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:56,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:56,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:56,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 04:16:56,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:56,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 04:16:56,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:56,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:56,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:56,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:56,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:56,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:56,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 04:16:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:56,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:56,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:56,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 04:16:56,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:56,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:16:56,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:56,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:56,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:56,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:56,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:56,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:56,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 04:16:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:56,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:56,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:56,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 04:16:56,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:56,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 04:16:56,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:56,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:56,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:56,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:56,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:56,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:56,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:16:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:57,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:57,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:57,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 04:16:57,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:57,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:16:57,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:57,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:57,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:16:57,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:57,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:16:57,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:57,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 04:16:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:57,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:57,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:57,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 04:16:57,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:57,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 04:16:57,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:57,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:57,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:16:57,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:16:57,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 04:16:57,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:57,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 04:16:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:16:57,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:16:57,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:16:57,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 04:16:57,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:16:57,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 04:16:57,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:16:57,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:16:57,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:16:57,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:16:57,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 04:16:57,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:16:57,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 428 proven. 2 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2020-10-14 04:16:57,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144070458] [2020-10-14 04:16:57,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:16:57,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:16:57,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574241156] [2020-10-14 04:16:57,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:16:57,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:16:57,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:16:57,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:16:57,935 INFO L87 Difference]: Start difference. First operand 51909 states and 57639 transitions. Second operand 7 states. [2020-10-14 04:17:09,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:17:09,906 INFO L93 Difference]: Finished difference Result 108785 states and 120847 transitions. [2020-10-14 04:17:09,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:17:09,907 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1115 [2020-10-14 04:17:09,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:17:10,007 INFO L225 Difference]: With dead ends: 108785 [2020-10-14 04:17:10,007 INFO L226 Difference]: Without dead ends: 57584 [2020-10-14 04:17:10,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:17:10,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57584 states. [2020-10-14 04:17:10,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57584 to 57554. [2020-10-14 04:17:10,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57554 states. [2020-10-14 04:17:10,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57554 states to 57554 states and 63627 transitions. [2020-10-14 04:17:10,766 INFO L78 Accepts]: Start accepts. Automaton has 57554 states and 63627 transitions. Word has length 1115 [2020-10-14 04:17:10,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:17:10,767 INFO L479 AbstractCegarLoop]: Abstraction has 57554 states and 63627 transitions. [2020-10-14 04:17:10,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:17:10,767 INFO L276 IsEmpty]: Start isEmpty. Operand 57554 states and 63627 transitions. [2020-10-14 04:17:10,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1213 [2020-10-14 04:17:10,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:17:10,796 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:17:10,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 04:17:10,797 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:17:10,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:17:10,798 INFO L82 PathProgramCache]: Analyzing trace with hash 92296901, now seen corresponding path program 1 times [2020-10-14 04:17:10,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:17:10,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569426959] [2020-10-14 04:17:10,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:17:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:11,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:11,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:14,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:14,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1236 [2020-10-14 04:17:14,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:17:14,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3822 [2020-10-14 04:17:14,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:14,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:14,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:17:14,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-14 04:17:14,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 04:17:14,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:15,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:17:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:15,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:15,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:15,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:17:15,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:15,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:17:15,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:15,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:15,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:15,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:15,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:15,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:17:15,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:17:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:15,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:15,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:15,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 04:17:15,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:15,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 04:17:15,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:15,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:15,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:15,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:15,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:17:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:15,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:15,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:15,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 04:17:15,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:15,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 04:17:15,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:15,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:15,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:15,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:15,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:15,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:15,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 04:17:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:15,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:15,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:15,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 04:17:15,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:15,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:17:15,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:15,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:15,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:15,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:15,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:15,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:15,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 04:17:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:15,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:15,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:15,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 04:17:15,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:15,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 04:17:15,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:15,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:15,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:15,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:17:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:15,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:15,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:15,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 04:17:15,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:15,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:17:15,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:15,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:15,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:15,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:15,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:15,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:15,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 04:17:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:15,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:15,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:15,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 04:17:15,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:15,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 04:17:15,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:15,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:15,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:17:15,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:17:15,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 04:17:15,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:15,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 04:17:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:15,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:15,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:15,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 04:17:15,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:15,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 04:17:15,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:15,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:17:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:17:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 04:17:15,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:15,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1061 [2020-10-14 04:17:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:17:15,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:17:15,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:17:15,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 04:17:15,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:17:15,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 04:17:15,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:17:15,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:17:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:17:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-14 04:17:15,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:17:15,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:17:16,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1421 backedges. 411 proven. 75 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2020-10-14 04:17:16,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569426959] [2020-10-14 04:17:16,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:17:16,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:17:16,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559852456] [2020-10-14 04:17:16,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:17:16,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:17:16,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:17:16,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:17:16,630 INFO L87 Difference]: Start difference. First operand 57554 states and 63627 transitions. Second operand 7 states.