/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=BIGGEST --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/Problem14_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:00:47,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:00:47,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:00:47,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:00:47,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:00:47,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:00:47,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:00:47,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:00:47,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:00:47,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:00:47,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:00:47,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:00:47,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:00:47,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:00:47,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:00:47,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:00:47,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:00:47,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:00:47,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:00:47,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:00:47,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:00:47,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:00:47,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:00:47,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:00:47,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:00:47,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:00:47,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:00:47,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:00:47,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:00:47,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:00:47,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:00:47,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:00:47,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:00:47,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:00:47,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:00:47,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:00:47,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:00:47,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:00:47,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:00:47,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:00:47,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:00:47,765 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 [2020-10-12 14:00:47,787 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:00:47,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:00:47,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:00:47,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:00:47,789 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:00:47,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:00:47,790 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:00:47,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:00:47,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:00:47,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:00:47,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:00:47,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:00:47,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:00:47,791 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:00:47,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:00:47,791 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:00:47,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:00:47,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:00:47,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:00:47,792 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:00:47,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:00:47,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:00:47,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:00:47,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:00:47,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:00:47,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:00:47,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:00:47,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:00:47,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:00:47,794 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 14:00:48,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:00:48,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:00:48,153 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:00:48,154 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:00:48,155 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:00:48,155 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label42.c [2020-10-12 14:00:48,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/012aa4c2f/cb3d8cec33fd41ea8597b91ce4c7bd49/FLAGbff98329e [2020-10-12 14:00:48,753 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:00:48,754 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label42.c [2020-10-12 14:00:48,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/012aa4c2f/cb3d8cec33fd41ea8597b91ce4c7bd49/FLAGbff98329e [2020-10-12 14:00:49,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/012aa4c2f/cb3d8cec33fd41ea8597b91ce4c7bd49 [2020-10-12 14:00:49,033 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:00:49,037 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:00:49,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:00:49,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:00:49,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:00:49,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:00:49" (1/1) ... [2020-10-12 14:00:49,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dadf5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:49, skipping insertion in model container [2020-10-12 14:00:49,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:00:49" (1/1) ... [2020-10-12 14:00:49,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:00:49,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:00:49,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:00:49,599 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:00:49,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:00:49,897 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:00:49,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:49 WrapperNode [2020-10-12 14:00:49,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:00:49,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:00:49,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:00:49,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:00:49,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:49" (1/1) ... [2020-10-12 14:00:49,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:49" (1/1) ... [2020-10-12 14:00:49,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:49" (1/1) ... [2020-10-12 14:00:49,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:49" (1/1) ... [2020-10-12 14:00:50,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:49" (1/1) ... [2020-10-12 14:00:50,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:49" (1/1) ... [2020-10-12 14:00:50,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:49" (1/1) ... [2020-10-12 14:00:50,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:00:50,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:00:50,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:00:50,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:00:50,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:49" (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 [2020-10-12 14:00:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:00:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:00:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:00:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:00:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:00:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:00:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:00:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:00:50,154 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:00:50,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:00:50,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:00:51,681 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:00:51,681 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:00:51,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:00:51 BoogieIcfgContainer [2020-10-12 14:00:51,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:00:51,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:00:51,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:00:51,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:00:51,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:00:49" (1/3) ... [2020-10-12 14:00:51,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6d3f43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:00:51, skipping insertion in model container [2020-10-12 14:00:51,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:00:49" (2/3) ... [2020-10-12 14:00:51,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6d3f43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:00:51, skipping insertion in model container [2020-10-12 14:00:51,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:00:51" (3/3) ... [2020-10-12 14:00:51,706 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label42.c [2020-10-12 14:00:51,717 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:00:51,729 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:00:51,745 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:00:51,771 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:00:51,771 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:00:51,771 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:00:51,772 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:00:51,772 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:00:51,772 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:00:51,772 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:00:51,772 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:00:51,798 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-12 14:00:51,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-12 14:00:51,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:51,808 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:51,808 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:51,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:51,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1174892051, now seen corresponding path program 1 times [2020-10-12 14:00:51,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:51,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615638397] [2020-10-12 14:00:51,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:52,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:52,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:52,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 14:00:52,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:52,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-12 14:00:52,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:52,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:00:52,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:52,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-12 14:00:52,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 14:00:52,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:52,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:52,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:52,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:52,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:52,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:00:52,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:52,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:52,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:52,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:52,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:52,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:00:52,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615638397] [2020-10-12 14:00:52,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:00:52,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:00:52,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874666097] [2020-10-12 14:00:52,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:00:52,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:52,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:00:52,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:00:52,534 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-12 14:00:54,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:54,247 INFO L93 Difference]: Finished difference Result 698 states and 1240 transitions. [2020-10-12 14:00:54,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:00:54,248 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-10-12 14:00:54,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:54,266 INFO L225 Difference]: With dead ends: 698 [2020-10-12 14:00:54,267 INFO L226 Difference]: Without dead ends: 380 [2020-10-12 14:00:54,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:00:54,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-12 14:00:54,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-12 14:00:54,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-12 14:00:54,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 552 transitions. [2020-10-12 14:00:54,357 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 552 transitions. Word has length 48 [2020-10-12 14:00:54,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:54,358 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 552 transitions. [2020-10-12 14:00:54,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:00:54,358 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 552 transitions. [2020-10-12 14:00:54,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 14:00:54,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:54,364 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, 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] [2020-10-12 14:00:54,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:00:54,365 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:54,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:54,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1760405091, now seen corresponding path program 1 times [2020-10-12 14:00:54,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:54,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [376278768] [2020-10-12 14:00:54,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:54,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:54,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:55,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:55,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:55,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 14:00:55,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:00:55,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1303 [2020-10-12 14:00:55,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:55,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:00:55,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:00:55,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:00:55,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:55,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:00:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:55,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:55,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:55,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:00:55,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:55,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:00:55,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:00:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:00:55,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:00:55,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:00:55,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:00:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:55,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:55,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:00:55,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:00:55,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:00:55,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 14:00:55,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:00:55,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:00:55,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:00:55,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 14:00:55,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:00:55,958 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:00:55,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [376278768] [2020-10-12 14:00:55,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:00:55,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:00:55,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164242123] [2020-10-12 14:00:55,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:00:55,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:00:55,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:00:55,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:00:55,963 INFO L87 Difference]: Start difference. First operand 376 states and 552 transitions. Second operand 7 states. [2020-10-12 14:00:57,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:00:57,986 INFO L93 Difference]: Finished difference Result 1134 states and 1694 transitions. [2020-10-12 14:00:57,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:00:57,986 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-10-12 14:00:57,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:00:57,994 INFO L225 Difference]: With dead ends: 1134 [2020-10-12 14:00:57,995 INFO L226 Difference]: Without dead ends: 764 [2020-10-12 14:00:57,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:00:57,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2020-10-12 14:00:58,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 750. [2020-10-12 14:00:58,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-10-12 14:00:58,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1046 transitions. [2020-10-12 14:00:58,064 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1046 transitions. Word has length 117 [2020-10-12 14:00:58,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:00:58,065 INFO L479 AbstractCegarLoop]: Abstraction has 750 states and 1046 transitions. [2020-10-12 14:00:58,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:00:58,065 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1046 transitions. [2020-10-12 14:00:58,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-12 14:00:58,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:00:58,077 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:00:58,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:00:58,078 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:00:58,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:00:58,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1396713334, now seen corresponding path program 1 times [2020-10-12 14:00:58,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:00:58,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247547758] [2020-10-12 14:00:58,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:00:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:00:58,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:58,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:58,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:00:59,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:00,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:01,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:01,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-12 14:01:01,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:01:01,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3302 [2020-10-12 14:01:01,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:01,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:01:01,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-12 14:01:01,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 14:01:01,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:01,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:01,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:01,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:01,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:01,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:01,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:01:01,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:01,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:01,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:01,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:01,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:01,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:01,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:01,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:01,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 14:01:01,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:01,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 14:01:01,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:01,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:01,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:01,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 14:01:01,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:01,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 14:01:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:01,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:01,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:01,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:01,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 14:01:01,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:01,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-12 14:01:01,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:01,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:01,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:01,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 14:01:01,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:01,929 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 108 proven. 41 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 14:01:01,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247547758] [2020-10-12 14:01:01,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:01,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:01:01,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890248811] [2020-10-12 14:01:01,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:01:01,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:01,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:01:01,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:01:01,933 INFO L87 Difference]: Start difference. First operand 750 states and 1046 transitions. Second operand 7 states. [2020-10-12 14:01:03,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:03,906 INFO L93 Difference]: Finished difference Result 1908 states and 2736 transitions. [2020-10-12 14:01:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:01:03,906 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-10-12 14:01:03,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:03,914 INFO L225 Difference]: With dead ends: 1908 [2020-10-12 14:01:03,914 INFO L226 Difference]: Without dead ends: 1164 [2020-10-12 14:01:03,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:01:03,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2020-10-12 14:01:03,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 1134. [2020-10-12 14:01:03,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1134 states. [2020-10-12 14:01:03,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1453 transitions. [2020-10-12 14:01:03,956 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1453 transitions. Word has length 199 [2020-10-12 14:01:03,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:03,957 INFO L479 AbstractCegarLoop]: Abstraction has 1134 states and 1453 transitions. [2020-10-12 14:01:03,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:01:03,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1453 transitions. [2020-10-12 14:01:03,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-12 14:01:03,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:03,961 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:03,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:01:03,962 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:03,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:03,962 INFO L82 PathProgramCache]: Analyzing trace with hash -489792702, now seen corresponding path program 1 times [2020-10-12 14:01:03,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:03,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831208860] [2020-10-12 14:01:03,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:04,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:04,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:05,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:07,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:07,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-12 14:01:07,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:01:07,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3468 [2020-10-12 14:01:07,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:07,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:01:07,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:01:07,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 14:01:07,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:07,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:07,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:07,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:07,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:07,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:07,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:01:07,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:07,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:07,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:07,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:01:07,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:07,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:07,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:07,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:07,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 14:01:07,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:07,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 14:01:07,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:07,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:01:07,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:07,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 14:01:07,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:07,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 14:01:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:07,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:07,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:07,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:01:07,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:07,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:01:07,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:07,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:07,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 14:01:07,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:07,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:07,794 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 82 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 14:01:07,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831208860] [2020-10-12 14:01:07,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:07,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:01:07,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019289766] [2020-10-12 14:01:07,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:01:07,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:07,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:01:07,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:01:07,800 INFO L87 Difference]: Start difference. First operand 1134 states and 1453 transitions. Second operand 7 states. [2020-10-12 14:01:09,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:09,948 INFO L93 Difference]: Finished difference Result 3426 states and 4476 transitions. [2020-10-12 14:01:09,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:01:09,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-10-12 14:01:09,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:09,963 INFO L225 Difference]: With dead ends: 3426 [2020-10-12 14:01:09,963 INFO L226 Difference]: Without dead ends: 2298 [2020-10-12 14:01:09,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:01:09,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2298 states. [2020-10-12 14:01:10,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2298 to 1890. [2020-10-12 14:01:10,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1890 states. [2020-10-12 14:01:10,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2348 transitions. [2020-10-12 14:01:10,044 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2348 transitions. Word has length 203 [2020-10-12 14:01:10,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:10,045 INFO L479 AbstractCegarLoop]: Abstraction has 1890 states and 2348 transitions. [2020-10-12 14:01:10,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:01:10,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2348 transitions. [2020-10-12 14:01:10,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-12 14:01:10,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:10,051 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:10,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:01:10,052 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:10,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:10,053 INFO L82 PathProgramCache]: Analyzing trace with hash -832836897, now seen corresponding path program 1 times [2020-10-12 14:01:10,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:10,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651214444] [2020-10-12 14:01:10,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:10,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:10,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:10,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:10,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:13,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:15,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:15,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:01:15,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:01:15,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 14:01:15,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:15,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:01:15,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-12 14:01:15,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 14:01:15,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:15,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:15,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:15,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:15,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:15,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:15,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:01:15,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:15,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:15,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:15,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 14:01:15,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:15,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:15,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:15,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:01:15,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:15,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 14:01:15,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:15,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 14:01:15,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:15,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 14:01:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:15,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:15,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:15,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:15,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:01:15,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:15,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-12 14:01:15,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:01:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:01:15,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:15,956 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 152 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 14:01:15,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651214444] [2020-10-12 14:01:15,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:15,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:01:15,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780322787] [2020-10-12 14:01:15,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:01:15,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:15,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:01:15,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:01:15,958 INFO L87 Difference]: Start difference. First operand 1890 states and 2348 transitions. Second operand 10 states. [2020-10-12 14:01:16,463 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-10-12 14:01:18,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:18,572 INFO L93 Difference]: Finished difference Result 3745 states and 4667 transitions. [2020-10-12 14:01:18,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 14:01:18,573 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 204 [2020-10-12 14:01:18,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:18,584 INFO L225 Difference]: With dead ends: 3745 [2020-10-12 14:01:18,584 INFO L226 Difference]: Without dead ends: 1935 [2020-10-12 14:01:18,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-10-12 14:01:18,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2020-10-12 14:01:18,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 1876. [2020-10-12 14:01:18,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1876 states. [2020-10-12 14:01:18,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2060 transitions. [2020-10-12 14:01:18,641 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2060 transitions. Word has length 204 [2020-10-12 14:01:18,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:18,642 INFO L479 AbstractCegarLoop]: Abstraction has 1876 states and 2060 transitions. [2020-10-12 14:01:18,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:01:18,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2060 transitions. [2020-10-12 14:01:18,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-10-12 14:01:18,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:18,649 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:18,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:01:18,649 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:18,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:18,650 INFO L82 PathProgramCache]: Analyzing trace with hash -2100227369, now seen corresponding path program 1 times [2020-10-12 14:01:18,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:18,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493057508] [2020-10-12 14:01:18,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:18,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:18,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:19,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:19,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:23,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:23,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 372 [2020-10-12 14:01:23,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:01:23,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 14:01:23,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:01:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-12 14:01:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-12 14:01:23,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:24,076 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-10-12 14:01:24,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:24,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:24,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:24,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:24,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:24,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:01:24,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:24,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:24,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:24,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:24,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:24,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:24,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 14:01:24,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:24,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-12 14:01:24,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:24,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 14:01:24,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:24,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-12 14:01:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:24,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:24,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:25,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:25,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:01:25,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:25,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 848 [2020-10-12 14:01:25,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:25,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:01:25,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:25,792 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-10-12 14:01:26,010 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-10-12 14:01:26,233 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 52 [2020-10-12 14:01:26,476 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2020-10-12 14:01:26,717 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2020-10-12 14:01:27,954 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 212 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 14:01:27,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493057508] [2020-10-12 14:01:27,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:27,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:01:27,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536205681] [2020-10-12 14:01:27,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:01:27,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:27,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:01:27,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:27,957 INFO L87 Difference]: Start difference. First operand 1876 states and 2060 transitions. Second operand 13 states. [2020-10-12 14:01:28,437 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-10-12 14:01:28,606 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-10-12 14:01:29,187 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-10-12 14:01:29,422 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2020-10-12 14:01:29,719 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2020-10-12 14:01:30,164 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2020-10-12 14:01:30,454 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2020-10-12 14:01:30,887 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-10-12 14:01:31,089 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-10-12 14:01:31,430 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-10-12 14:01:31,700 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2020-10-12 14:01:31,975 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-10-12 14:01:32,266 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2020-10-12 14:01:32,518 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 51 [2020-10-12 14:01:32,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:32,880 INFO L93 Difference]: Finished difference Result 3764 states and 4155 transitions. [2020-10-12 14:01:32,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:01:32,880 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 360 [2020-10-12 14:01:32,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:32,888 INFO L225 Difference]: With dead ends: 3764 [2020-10-12 14:01:32,888 INFO L226 Difference]: Without dead ends: 1888 [2020-10-12 14:01:32,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=269, Invalid=661, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:01:32,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2020-10-12 14:01:32,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1874. [2020-10-12 14:01:32,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1874 states. [2020-10-12 14:01:32,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 2039 transitions. [2020-10-12 14:01:32,938 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 2039 transitions. Word has length 360 [2020-10-12 14:01:32,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:32,938 INFO L479 AbstractCegarLoop]: Abstraction has 1874 states and 2039 transitions. [2020-10-12 14:01:32,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:01:32,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 2039 transitions. [2020-10-12 14:01:32,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2020-10-12 14:01:32,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:32,955 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, 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, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:32,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:01:32,956 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:32,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:32,957 INFO L82 PathProgramCache]: Analyzing trace with hash -34605689, now seen corresponding path program 1 times [2020-10-12 14:01:32,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:32,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541580412] [2020-10-12 14:01:32,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:33,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:33,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:36,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:37,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:38,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:38,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 572 [2020-10-12 14:01:38,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:01:38,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-12 14:01:38,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:38,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:01:38,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-12 14:01:38,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-12 14:01:38,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:38,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:38,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:38,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:38,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:38,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:38,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:01:38,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:38,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:38,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:38,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:38,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:38,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:38,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:38,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:38,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:38,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:38,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:01:38,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:38,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:38,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:38,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:38,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:38,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:38,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:38,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:01:38,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:38,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:38,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:38,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:38,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:38,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:38,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:38,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:38,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:38,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:38,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 14:01:38,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:38,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:38,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:38,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:01:38,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:38,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:01:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:38,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:38,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:39,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:39,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:01:39,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:39,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 713 [2020-10-12 14:01:39,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:39,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:39,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:39,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:01:39,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:39,854 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-10-12 14:01:40,012 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2020-10-12 14:01:40,184 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-12 14:01:40,411 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2020-10-12 14:01:40,584 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-10-12 14:01:41,962 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 494 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-10-12 14:01:41,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541580412] [2020-10-12 14:01:41,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:41,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:01:41,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107549130] [2020-10-12 14:01:41,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:01:41,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:41,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:01:41,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:41,965 INFO L87 Difference]: Start difference. First operand 1874 states and 2039 transitions. Second operand 13 states. [2020-10-12 14:01:42,647 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-10-12 14:01:42,818 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-12 14:01:43,126 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2020-10-12 14:01:43,313 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2020-10-12 14:01:43,457 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-10-12 14:01:44,030 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2020-10-12 14:01:44,530 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2020-10-12 14:01:44,994 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-10-12 14:01:45,178 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2020-10-12 14:01:45,479 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 57 [2020-10-12 14:01:45,678 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2020-10-12 14:01:46,004 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2020-10-12 14:01:46,325 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 62 [2020-10-12 14:01:46,656 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2020-10-12 14:01:47,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:47,088 INFO L93 Difference]: Finished difference Result 3762 states and 4113 transitions. [2020-10-12 14:01:47,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:01:47,089 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 556 [2020-10-12 14:01:47,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:47,098 INFO L225 Difference]: With dead ends: 3762 [2020-10-12 14:01:47,098 INFO L226 Difference]: Without dead ends: 1926 [2020-10-12 14:01:47,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=249, Invalid=621, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:01:47,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2020-10-12 14:01:47,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1801. [2020-10-12 14:01:47,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1801 states. [2020-10-12 14:01:47,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 1966 transitions. [2020-10-12 14:01:47,142 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 1966 transitions. Word has length 556 [2020-10-12 14:01:47,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:47,143 INFO L479 AbstractCegarLoop]: Abstraction has 1801 states and 1966 transitions. [2020-10-12 14:01:47,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:01:47,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 1966 transitions. [2020-10-12 14:01:47,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2020-10-12 14:01:47,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:47,156 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, 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, 4, 4, 4, 4, 4, 3, 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] [2020-10-12 14:01:47,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:01:47,157 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:47,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:47,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1475036738, now seen corresponding path program 1 times [2020-10-12 14:01:47,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:47,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867441705] [2020-10-12 14:01:47,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:47,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:47,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:47,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:50,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:52,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:52,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 579 [2020-10-12 14:01:52,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:01:52,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 14:01:52,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:01:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-12 14:01:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-12 14:01:52,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:52,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:01:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:52,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:52,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:52,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:01:52,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:52,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:01:52,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:52,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:52,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:52,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:52,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:52,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:01:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:52,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:52,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:52,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:01:52,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:52,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:01:52,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:52,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:01:52,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:01:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:52,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:52,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:52,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:01:52,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:52,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:01:52,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:52,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:01:52,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:52,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:01:52,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:52,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:01:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:52,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:52,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:52,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:01:52,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:01:52,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 14:01:52,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:52,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:01:52,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:01:52,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 14:01:52,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:52,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:01:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:52,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:52,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:53,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:01:53,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:01:53,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:01:53,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 671 [2020-10-12 14:01:53,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:01:53,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:01:53,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:01:53,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:01:53,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:01:55,079 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 501 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-10-12 14:01:55,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867441705] [2020-10-12 14:01:55,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:01:55,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:01:55,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541350053] [2020-10-12 14:01:55,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:01:55,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:01:55,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:01:55,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:01:55,082 INFO L87 Difference]: Start difference. First operand 1801 states and 1966 transitions. Second operand 13 states. [2020-10-12 14:01:55,856 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2020-10-12 14:01:56,157 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-10-12 14:01:56,363 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-12 14:01:56,488 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-12 14:01:56,645 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-12 14:01:56,782 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2020-10-12 14:01:57,001 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2020-10-12 14:01:57,671 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 52 [2020-10-12 14:01:58,149 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2020-10-12 14:01:58,393 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 58 [2020-10-12 14:01:58,561 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2020-10-12 14:01:58,763 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2020-10-12 14:01:58,965 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2020-10-12 14:01:59,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:01:59,369 INFO L93 Difference]: Finished difference Result 3614 states and 3964 transitions. [2020-10-12 14:01:59,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:01:59,370 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 563 [2020-10-12 14:01:59,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:01:59,378 INFO L225 Difference]: With dead ends: 3614 [2020-10-12 14:01:59,378 INFO L226 Difference]: Without dead ends: 1976 [2020-10-12 14:01:59,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:01:59,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2020-10-12 14:01:59,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1962. [2020-10-12 14:01:59,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-10-12 14:01:59,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2133 transitions. [2020-10-12 14:01:59,421 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2133 transitions. Word has length 563 [2020-10-12 14:01:59,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:01:59,422 INFO L479 AbstractCegarLoop]: Abstraction has 1962 states and 2133 transitions. [2020-10-12 14:01:59,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:01:59,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2133 transitions. [2020-10-12 14:01:59,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2020-10-12 14:01:59,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:01:59,429 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, 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, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:01:59,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:01:59,429 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:01:59,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:01:59,430 INFO L82 PathProgramCache]: Analyzing trace with hash 752713718, now seen corresponding path program 1 times [2020-10-12 14:01:59,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:01:59,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443107401] [2020-10-12 14:01:59,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:01:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:01:59,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:01:59,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:00,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:03,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:04,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:04,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:04,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 639 [2020-10-12 14:02:04,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:02:04,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-12 14:02:04,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:04,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:04,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 410 [2020-10-12 14:02:04,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 14:02:04,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:04,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:04,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:04,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:04,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:04,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:04,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:02:04,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:04,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:04,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:04,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:04,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:02:04,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:04,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:04,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:04,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:04,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:04,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 14:02:04,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:04,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:04,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:04,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:04,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:05,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:05,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:05,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:05,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:05,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:05,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:02:05,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:05,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:05,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:05,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:05,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:05,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:05,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:05,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:05,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:05,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 14:02:05,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:05,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:05,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 14:02:05,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:05,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-12 14:02:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:05,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:05,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:05,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:05,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:05,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:05,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-10-12 14:02:05,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:05,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:05,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:06,454 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2020-10-12 14:02:06,711 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2020-10-12 14:02:06,984 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2020-10-12 14:02:07,278 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2020-10-12 14:02:07,572 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2020-10-12 14:02:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 561 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-10-12 14:02:09,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443107401] [2020-10-12 14:02:09,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:09,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:09,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734073588] [2020-10-12 14:02:09,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:09,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:09,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:09,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:09,897 INFO L87 Difference]: Start difference. First operand 1962 states and 2133 transitions. Second operand 13 states. [2020-10-12 14:02:10,480 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2020-10-12 14:02:10,708 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2020-10-12 14:02:10,979 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2020-10-12 14:02:11,222 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2020-10-12 14:02:11,615 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-10-12 14:02:11,938 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2020-10-12 14:02:12,310 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 86 [2020-10-12 14:02:12,779 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2020-10-12 14:02:13,066 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-10-12 14:02:13,613 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 57 [2020-10-12 14:02:13,893 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 62 [2020-10-12 14:02:14,203 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 63 [2020-10-12 14:02:14,476 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 66 [2020-10-12 14:02:14,949 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 66 [2020-10-12 14:02:15,357 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 69 [2020-10-12 14:02:15,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:15,843 INFO L93 Difference]: Finished difference Result 3932 states and 4294 transitions. [2020-10-12 14:02:15,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:02:15,844 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 623 [2020-10-12 14:02:15,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:15,852 INFO L225 Difference]: With dead ends: 3932 [2020-10-12 14:02:15,852 INFO L226 Difference]: Without dead ends: 2050 [2020-10-12 14:02:15,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:02:15,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2020-10-12 14:02:15,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2036. [2020-10-12 14:02:15,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2036 states. [2020-10-12 14:02:15,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2036 states to 2036 states and 2208 transitions. [2020-10-12 14:02:15,899 INFO L78 Accepts]: Start accepts. Automaton has 2036 states and 2208 transitions. Word has length 623 [2020-10-12 14:02:15,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:15,901 INFO L479 AbstractCegarLoop]: Abstraction has 2036 states and 2208 transitions. [2020-10-12 14:02:15,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:15,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2036 states and 2208 transitions. [2020-10-12 14:02:15,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2020-10-12 14:02:15,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:15,908 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, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-10-12 14:02:15,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:02:15,908 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:15,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:15,909 INFO L82 PathProgramCache]: Analyzing trace with hash 678594994, now seen corresponding path program 1 times [2020-10-12 14:02:15,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:15,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524701889] [2020-10-12 14:02:15,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:16,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:16,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:16,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:17,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:18,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 662 [2020-10-12 14:02:21,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:02:21,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 14:02:21,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:21,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 433 [2020-10-12 14:02:21,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:21,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:21,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:21,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:21,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:21,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:21,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:21,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:21,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:21,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:02:21,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:21,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:21,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:21,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:02:21,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:21,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:21,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:21,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:21,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:21,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:21,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:21,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:02:21,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:21,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:21,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:21,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:21,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:21,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:02:21,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:21,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:21,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:21,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:21,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:21,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:21,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:21,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:02:21,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:21,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:21,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 14:02:21,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:21,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:21,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:21,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:21,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:21,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:21,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 345 [2020-10-12 14:02:21,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:21,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:21,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:22,271 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-10-12 14:02:22,446 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-10-12 14:02:22,609 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-10-12 14:02:22,792 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-10-12 14:02:22,979 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-12 14:02:24,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 625 proven. 2 refuted. 0 times theorem prover too weak. 566 trivial. 0 not checked. [2020-10-12 14:02:24,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524701889] [2020-10-12 14:02:24,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:24,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:24,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097660554] [2020-10-12 14:02:24,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:24,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:24,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:24,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:24,584 INFO L87 Difference]: Start difference. First operand 2036 states and 2208 transitions. Second operand 13 states. [2020-10-12 14:02:25,121 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-10-12 14:02:25,467 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-10-12 14:02:25,695 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2020-10-12 14:02:25,856 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-10-12 14:02:26,039 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-12 14:02:26,460 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-12 14:02:26,691 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2020-10-12 14:02:26,938 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2020-10-12 14:02:27,593 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2020-10-12 14:02:28,027 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-10-12 14:02:28,209 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-10-12 14:02:28,409 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-10-12 14:02:28,872 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2020-10-12 14:02:29,122 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2020-10-12 14:02:29,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:29,441 INFO L93 Difference]: Finished difference Result 4082 states and 4445 transitions. [2020-10-12 14:02:29,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:02:29,442 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 644 [2020-10-12 14:02:29,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:29,450 INFO L225 Difference]: With dead ends: 4082 [2020-10-12 14:02:29,451 INFO L226 Difference]: Without dead ends: 2227 [2020-10-12 14:02:29,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=258, Invalid=612, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:02:29,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2020-10-12 14:02:29,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2213. [2020-10-12 14:02:29,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2213 states. [2020-10-12 14:02:29,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 2388 transitions. [2020-10-12 14:02:29,501 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 2388 transitions. Word has length 644 [2020-10-12 14:02:29,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:29,502 INFO L479 AbstractCegarLoop]: Abstraction has 2213 states and 2388 transitions. [2020-10-12 14:02:29,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:29,502 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 2388 transitions. [2020-10-12 14:02:29,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2020-10-12 14:02:29,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:29,510 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:02:29,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:02:29,511 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:29,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:29,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1312775649, now seen corresponding path program 1 times [2020-10-12 14:02:29,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:29,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076424758] [2020-10-12 14:02:29,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:29,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:29,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:31,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:34,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:34,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 717 [2020-10-12 14:02:34,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:02:34,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4557 [2020-10-12 14:02:34,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:34,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:34,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-12 14:02:34,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 14:02:34,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:34,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:34,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:34,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:34,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:34,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:34,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:34,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:34,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:34,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:34,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:34,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:34,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:34,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:34,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:34,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:34,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:34,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:02:34,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:34,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:34,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:34,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:34,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:34,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:34,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:34,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:34,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:34,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:34,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:02:34,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:34,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:34,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:34,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 14:02:34,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:34,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:34,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:34,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:35,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:35,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:35,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:35,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 624 [2020-10-12 14:02:35,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:35,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:35,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:35,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 14:02:35,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:35,585 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-10-12 14:02:35,773 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2020-10-12 14:02:35,968 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2020-10-12 14:02:36,154 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2020-10-12 14:02:36,351 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2020-10-12 14:02:36,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-12 14:02:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:36,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:36,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:36,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:36,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:36,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:36,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:36,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:36,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 14:02:36,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:36,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:36,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2020-10-12 14:02:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:36,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:36,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:36,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:36,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:36,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:02:36,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:36,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:36,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-12 14:02:36,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:36,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:37,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1233 backedges. 439 proven. 249 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2020-10-12 14:02:37,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076424758] [2020-10-12 14:02:37,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:37,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:37,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942070576] [2020-10-12 14:02:37,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:37,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:37,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:37,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:37,963 INFO L87 Difference]: Start difference. First operand 2213 states and 2388 transitions. Second operand 13 states. [2020-10-12 14:02:38,858 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-10-12 14:02:39,056 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2020-10-12 14:02:39,408 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2020-10-12 14:02:39,877 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2020-10-12 14:02:40,283 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2020-10-12 14:02:40,591 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 86 [2020-10-12 14:02:40,988 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 84 [2020-10-12 14:02:42,266 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2020-10-12 14:02:42,493 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2020-10-12 14:02:42,980 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 65 [2020-10-12 14:02:43,324 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 63 [2020-10-12 14:02:43,569 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 67 [2020-10-12 14:02:43,916 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 61 [2020-10-12 14:02:44,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:44,542 INFO L93 Difference]: Finished difference Result 4434 states and 4792 transitions. [2020-10-12 14:02:44,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:02:44,543 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 699 [2020-10-12 14:02:44,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:44,552 INFO L225 Difference]: With dead ends: 4434 [2020-10-12 14:02:44,552 INFO L226 Difference]: Without dead ends: 2342 [2020-10-12 14:02:44,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=246, Invalid=624, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:02:44,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2020-10-12 14:02:44,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 2328. [2020-10-12 14:02:44,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2328 states. [2020-10-12 14:02:44,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2328 states to 2328 states and 2504 transitions. [2020-10-12 14:02:44,603 INFO L78 Accepts]: Start accepts. Automaton has 2328 states and 2504 transitions. Word has length 699 [2020-10-12 14:02:44,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:44,604 INFO L479 AbstractCegarLoop]: Abstraction has 2328 states and 2504 transitions. [2020-10-12 14:02:44,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:44,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2328 states and 2504 transitions. [2020-10-12 14:02:44,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2020-10-12 14:02:44,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:44,613 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, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:44,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:02:44,613 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:44,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:44,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1090525998, now seen corresponding path program 1 times [2020-10-12 14:02:44,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:44,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859363691] [2020-10-12 14:02:44,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:44,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:45,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:46,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:48,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:48,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 740 [2020-10-12 14:02:48,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:02:48,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3533 [2020-10-12 14:02:48,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:48,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:02:48,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-12 14:02:48,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 14:02:48,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:48,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:48,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:48,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:48,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:48,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:48,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:48,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:48,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:48,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:48,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:48,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:48,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:48,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:48,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:48,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:48,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:48,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:02:48,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:48,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:48,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:48,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:48,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:48,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:48,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:48,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:48,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:48,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:48,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:02:48,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:48,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:48,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:48,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:48,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:48,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:48,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:48,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:02:48,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:48,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:48,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:48,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:48,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:48,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:48,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:48,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:48,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 14:02:48,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:48,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 14:02:48,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:48,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:48,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:48,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 14:02:48,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:48,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 14:02:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:48,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:48,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:49,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:49,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:49,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:02:49,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-12 14:02:49,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:49,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:02:49,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:02:49,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:02:49,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:51,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1364 backedges. 703 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-10-12 14:02:51,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859363691] [2020-10-12 14:02:51,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:51,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:02:51,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080646667] [2020-10-12 14:02:51,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:02:51,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:51,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:02:51,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:02:51,077 INFO L87 Difference]: Start difference. First operand 2328 states and 2504 transitions. Second operand 13 states. [2020-10-12 14:02:51,683 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-10-12 14:02:52,176 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2020-10-12 14:02:52,477 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-10-12 14:02:52,649 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2020-10-12 14:02:52,887 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-10-12 14:02:53,271 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2020-10-12 14:02:53,637 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-12 14:02:54,544 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 49 [2020-10-12 14:02:55,147 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2020-10-12 14:02:55,360 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56 [2020-10-12 14:02:55,606 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2020-10-12 14:02:55,980 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 62 [2020-10-12 14:02:56,333 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 65 [2020-10-12 14:02:56,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:56,793 INFO L93 Difference]: Finished difference Result 4662 states and 5031 transitions. [2020-10-12 14:02:56,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:02:56,794 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 722 [2020-10-12 14:02:56,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:56,801 INFO L225 Difference]: With dead ends: 4662 [2020-10-12 14:02:56,802 INFO L226 Difference]: Without dead ends: 2511 [2020-10-12 14:02:56,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=245, Invalid=625, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:02:56,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2020-10-12 14:02:56,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2499. [2020-10-12 14:02:56,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2499 states. [2020-10-12 14:02:56,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 2676 transitions. [2020-10-12 14:02:56,851 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 2676 transitions. Word has length 722 [2020-10-12 14:02:56,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:56,852 INFO L479 AbstractCegarLoop]: Abstraction has 2499 states and 2676 transitions. [2020-10-12 14:02:56,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:02:56,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 2676 transitions. [2020-10-12 14:02:56,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 898 [2020-10-12 14:02:56,863 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:56,863 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:56,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:02:56,864 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:56,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:56,864 INFO L82 PathProgramCache]: Analyzing trace with hash -33469145, now seen corresponding path program 1 times [2020-10-12 14:02:56,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:56,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1817910953] [2020-10-12 14:02:56,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:57,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:57,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:57,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 919 [2020-10-12 14:02:57,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:57,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 646 [2020-10-12 14:02:57,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:57,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:02:57,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 14:02:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 14:02:57,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:57,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:02:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:57,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:57,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:57,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:02:57,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:57,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:02:57,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:57,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:57,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:57,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:57,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:57,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:02:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:57,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:57,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:57,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:02:57,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:57,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:02:57,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:57,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:57,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:57,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:57,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:57,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:02:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:57,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:57,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:57,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:02:57,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:57,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:02:57,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:57,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:57,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:57,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:57,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:57,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:02:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:57,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:57,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:57,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:02:57,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:57,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:02:57,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:57,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:57,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:57,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:57,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:57,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:02:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:57,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:57,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:57,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:02:57,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:57,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:02:57,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:57,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:57,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:57,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:57,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:57,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:02:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:57,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:57,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:57,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:02:57,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:57,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:02:57,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:57,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:57,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:57,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:57,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:57,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:02:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:57,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:57,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:57,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:02:57,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:57,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:02:57,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:57,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:02:57,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:57,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:02:57,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:57,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:02:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:57,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:58,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:02:58,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:02:58,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:02:58,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 14:02:58,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:02:58,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:02:58,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:02:58,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 14:02:58,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:02:58,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2325 backedges. 298 proven. 7 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2020-10-12 14:02:58,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1817910953] [2020-10-12 14:02:58,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:02:58,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:02:58,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117745928] [2020-10-12 14:02:58,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:02:58,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:02:58,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:02:58,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:02:58,394 INFO L87 Difference]: Start difference. First operand 2499 states and 2676 transitions. Second operand 5 states. [2020-10-12 14:02:59,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:02:59,499 INFO L93 Difference]: Finished difference Result 5190 states and 5675 transitions. [2020-10-12 14:02:59,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:02:59,500 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 897 [2020-10-12 14:02:59,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:02:59,507 INFO L225 Difference]: With dead ends: 5190 [2020-10-12 14:02:59,507 INFO L226 Difference]: Without dead ends: 2879 [2020-10-12 14:02:59,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:02:59,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2020-10-12 14:02:59,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 2875. [2020-10-12 14:02:59,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2875 states. [2020-10-12 14:02:59,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 3152 transitions. [2020-10-12 14:02:59,564 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 3152 transitions. Word has length 897 [2020-10-12 14:02:59,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:02:59,565 INFO L479 AbstractCegarLoop]: Abstraction has 2875 states and 3152 transitions. [2020-10-12 14:02:59,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:02:59,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 3152 transitions. [2020-10-12 14:02:59,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2020-10-12 14:02:59,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:02:59,578 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:02:59,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:02:59,578 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:02:59,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:02:59,579 INFO L82 PathProgramCache]: Analyzing trace with hash 855903190, now seen corresponding path program 1 times [2020-10-12 14:02:59,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:02:59,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639522390] [2020-10-12 14:02:59,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:02:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:02:59,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:02:59,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:02,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:04,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:04,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1001 [2020-10-12 14:03:04,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:03:04,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5080 [2020-10-12 14:03:04,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 953 [2020-10-12 14:03:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 14:03:04,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:04,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:04,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:04,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:04,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:04,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:04,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:03:04,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:04,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:04,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:04,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:04,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:04,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:05,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:05,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:05,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:05,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:05,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:03:05,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:05,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:05,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:05,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:05,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:05,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:05,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:05,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:05,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:05,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:05,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:03:05,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:05,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:05,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:05,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:05,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:05,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:05,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:05,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:05,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:05,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:05,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:03:05,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:05,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:05,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:05,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:05,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:05,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:05,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:05,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:05,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:05,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:05,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:05,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:05,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:05,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:05,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:05,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:05,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:05,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:05,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:05,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:05,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-12 14:03:05,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:05,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:05,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:05,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:05,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:05,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:05,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:05,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:05,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:05,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:05,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:05,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:05,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:05,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:05,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:05,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:05,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:05,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:05,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:05,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:05,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:05,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:03:05,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:05,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:05,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:05,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:05,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:05,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:05,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:05,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:05,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 14:03:05,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:05,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:03:05,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:05,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:05,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:05,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:03:05,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:05,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2922 backedges. 341 proven. 8 refuted. 0 times theorem prover too weak. 2573 trivial. 0 not checked. [2020-10-12 14:03:05,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639522390] [2020-10-12 14:03:05,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:05,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:03:05,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413075182] [2020-10-12 14:03:05,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:03:05,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:05,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:03:05,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:03:05,970 INFO L87 Difference]: Start difference. First operand 2875 states and 3152 transitions. Second operand 5 states. [2020-10-12 14:03:06,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:06,849 INFO L93 Difference]: Finished difference Result 5597 states and 6179 transitions. [2020-10-12 14:03:06,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:03:06,850 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 977 [2020-10-12 14:03:06,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:06,860 INFO L225 Difference]: With dead ends: 5597 [2020-10-12 14:03:06,861 INFO L226 Difference]: Without dead ends: 2879 [2020-10-12 14:03:06,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:03:06,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2020-10-12 14:03:06,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 2875. [2020-10-12 14:03:06,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2875 states. [2020-10-12 14:03:06,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 3150 transitions. [2020-10-12 14:03:06,921 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 3150 transitions. Word has length 977 [2020-10-12 14:03:06,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:06,922 INFO L479 AbstractCegarLoop]: Abstraction has 2875 states and 3150 transitions. [2020-10-12 14:03:06,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:03:06,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 3150 transitions. [2020-10-12 14:03:06,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 981 [2020-10-12 14:03:06,935 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:06,935 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:06,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:03:06,936 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:06,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:06,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1038908749, now seen corresponding path program 1 times [2020-10-12 14:03:06,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:06,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932583606] [2020-10-12 14:03:06,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:07,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:07,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:08,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:10,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:10,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1004 [2020-10-12 14:03:10,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:03:10,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3783 [2020-10-12 14:03:10,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:10,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:10,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 14:03:10,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 14:03:10,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:11,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:11,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:11,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:11,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:11,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:11,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:03:11,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:11,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:11,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:11,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:11,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:11,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:11,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:11,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:11,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:11,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:11,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:11,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:11,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:11,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:11,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:11,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:11,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:11,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:11,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:11,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:11,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:11,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:03:11,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:11,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:03:11,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:11,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:11,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:11,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:11,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:11,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:03:11,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:11,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:11,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:11,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:11,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:11,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:11,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:11,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:11,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:11,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:11,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:11,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:11,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:11,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:11,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:11,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:11,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:11,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:11,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:11,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:11,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:03:11,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:11,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:11,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:11,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:11,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:11,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:11,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:11,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:11,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:11,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:11,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:03:11,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:11,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:11,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:11,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:11,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:11,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:11,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:11,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:11,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:11,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:11,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-12 14:03:11,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:11,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:11,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:11,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 14:03:11,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:11,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:11,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:11,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:11,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:03:11,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:11,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:03:11,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:03:11,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:11,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2938 backedges. 909 proven. 2 refuted. 0 times theorem prover too weak. 2027 trivial. 0 not checked. [2020-10-12 14:03:11,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932583606] [2020-10-12 14:03:11,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:11,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:03:11,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512501118] [2020-10-12 14:03:11,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:03:11,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:11,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:03:11,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:03:11,935 INFO L87 Difference]: Start difference. First operand 2875 states and 3150 transitions. Second operand 7 states. [2020-10-12 14:03:13,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:13,501 INFO L93 Difference]: Finished difference Result 6124 states and 6828 transitions. [2020-10-12 14:03:13,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:03:13,508 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 980 [2020-10-12 14:03:13,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:13,520 INFO L225 Difference]: With dead ends: 6124 [2020-10-12 14:03:13,520 INFO L226 Difference]: Without dead ends: 3251 [2020-10-12 14:03:13,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:03:13,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3251 states. [2020-10-12 14:03:13,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3251 to 3249. [2020-10-12 14:03:13,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3249 states. [2020-10-12 14:03:13,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 3559 transitions. [2020-10-12 14:03:13,595 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 3559 transitions. Word has length 980 [2020-10-12 14:03:13,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:13,596 INFO L479 AbstractCegarLoop]: Abstraction has 3249 states and 3559 transitions. [2020-10-12 14:03:13,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:03:13,596 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 3559 transitions. [2020-10-12 14:03:13,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 984 [2020-10-12 14:03:13,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:13,612 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:13,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:03:13,612 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:13,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:13,613 INFO L82 PathProgramCache]: Analyzing trace with hash -2039707286, now seen corresponding path program 1 times [2020-10-12 14:03:13,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:13,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885508012] [2020-10-12 14:03:13,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:13,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:14,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1007 [2020-10-12 14:03:18,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:18,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-12 14:03:18,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:03:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 14:03:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-12 14:03:18,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:18,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:18,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:18,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:18,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:18,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:03:18,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:18,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:18,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:18,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:18,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:18,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:18,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:19,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:19,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:19,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:19,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:03:19,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:19,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:19,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:19,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:19,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:19,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:19,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:19,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:19,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:19,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:19,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:19,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:19,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:19,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:19,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:19,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:19,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:19,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:19,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:19,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:19,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:19,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:19,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:19,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:19,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:19,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:19,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:19,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:19,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:19,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:19,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:19,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:19,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:19,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:19,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:19,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:19,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:19,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:19,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:19,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:19,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:03:19,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:19,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:19,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:19,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:19,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:19,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:19,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:19,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:19,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:19,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:19,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:03:19,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:19,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:19,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:19,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:03:19,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:19,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:19,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:19,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:19,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:19,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:19,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-12 14:03:19,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:19,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:03:19,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:19,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:03:19,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:19,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:19,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:19,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:19,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:03:19,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:19,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:03:19,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:19,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:03:19,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:20,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2953 backedges. 1502 proven. 85 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked. [2020-10-12 14:03:20,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885508012] [2020-10-12 14:03:20,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:20,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:03:20,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402535293] [2020-10-12 14:03:20,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:03:20,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:20,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:03:20,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:03:20,040 INFO L87 Difference]: Start difference. First operand 3249 states and 3559 transitions. Second operand 10 states. [2020-10-12 14:03:22,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:22,743 INFO L93 Difference]: Finished difference Result 7632 states and 8616 transitions. [2020-10-12 14:03:22,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 14:03:22,744 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 983 [2020-10-12 14:03:22,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:22,770 INFO L225 Difference]: With dead ends: 7632 [2020-10-12 14:03:22,770 INFO L226 Difference]: Without dead ends: 4571 [2020-10-12 14:03:22,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-10-12 14:03:22,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4571 states. [2020-10-12 14:03:22,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4571 to 4557. [2020-10-12 14:03:22,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4557 states. [2020-10-12 14:03:22,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4557 states to 4557 states and 5143 transitions. [2020-10-12 14:03:22,857 INFO L78 Accepts]: Start accepts. Automaton has 4557 states and 5143 transitions. Word has length 983 [2020-10-12 14:03:22,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:22,859 INFO L479 AbstractCegarLoop]: Abstraction has 4557 states and 5143 transitions. [2020-10-12 14:03:22,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:03:22,859 INFO L276 IsEmpty]: Start isEmpty. Operand 4557 states and 5143 transitions. [2020-10-12 14:03:22,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1099 [2020-10-12 14:03:22,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:22,875 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:22,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:03:22,875 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:22,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:22,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1706541462, now seen corresponding path program 1 times [2020-10-12 14:03:22,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:22,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1986927737] [2020-10-12 14:03:22,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:23,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:23,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:23,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:28,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:28,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1124 [2020-10-12 14:03:28,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:03:28,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-12 14:03:28,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:28,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 14:03:28,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 14:03:28,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 387 [2020-10-12 14:03:28,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:28,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:28,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:28,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:28,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:28,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:28,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:03:28,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:28,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:28,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:28,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:28,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:28,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:28,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:28,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:28,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:28,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:28,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:28,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:28,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:28,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:28,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:28,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:28,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:28,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:28,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:28,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:28,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:28,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:28,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:28,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:28,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:28,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:28,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:28,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:28,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:28,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:28,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:28,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:28,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:28,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:28,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:28,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:28,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:28,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:28,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:28,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:28,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:28,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:28,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:28,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:28,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:28,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:28,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:28,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:28,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:28,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:28,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:03:28,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:28,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:28,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:28,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:28,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:28,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:28,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:28,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:03:28,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:03:28,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:28,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:28,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:28,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:28,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:28,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:28,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-12 14:03:28,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:28,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:03:28,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:28,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:03:28,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:28,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:28,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:28,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:28,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:28,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:28,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 14:03:28,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:28,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:28,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:28,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 14:03:28,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:28,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:03:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:28,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:29,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:29,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:03:29,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:29,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:03:29,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:29,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:29,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:29,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:03:29,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:30,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3791 backedges. 2138 proven. 164 refuted. 0 times theorem prover too weak. 1489 trivial. 0 not checked. [2020-10-12 14:03:30,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1986927737] [2020-10-12 14:03:30,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:30,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:03:30,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307444034] [2020-10-12 14:03:30,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:03:30,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:30,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:03:30,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:03:30,047 INFO L87 Difference]: Start difference. First operand 4557 states and 5143 transitions. Second operand 10 states. [2020-10-12 14:03:32,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:32,879 INFO L93 Difference]: Finished difference Result 9128 states and 10344 transitions. [2020-10-12 14:03:32,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 14:03:32,883 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1098 [2020-10-12 14:03:32,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:32,897 INFO L225 Difference]: With dead ends: 9128 [2020-10-12 14:03:32,897 INFO L226 Difference]: Without dead ends: 4759 [2020-10-12 14:03:32,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2020-10-12 14:03:32,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4759 states. [2020-10-12 14:03:32,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4759 to 4749. [2020-10-12 14:03:32,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4749 states. [2020-10-12 14:03:33,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4749 states to 4749 states and 5343 transitions. [2020-10-12 14:03:33,005 INFO L78 Accepts]: Start accepts. Automaton has 4749 states and 5343 transitions. Word has length 1098 [2020-10-12 14:03:33,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:33,006 INFO L479 AbstractCegarLoop]: Abstraction has 4749 states and 5343 transitions. [2020-10-12 14:03:33,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:03:33,006 INFO L276 IsEmpty]: Start isEmpty. Operand 4749 states and 5343 transitions. [2020-10-12 14:03:33,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1242 [2020-10-12 14:03:33,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:33,033 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:33,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:03:33,034 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:33,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:33,034 INFO L82 PathProgramCache]: Analyzing trace with hash -713015836, now seen corresponding path program 1 times [2020-10-12 14:03:33,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:33,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160396986] [2020-10-12 14:03:33,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:33,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:34,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:35,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:35,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1269 [2020-10-12 14:03:35,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:35,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2034 [2020-10-12 14:03:35,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 14:03:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 14:03:35,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:35,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:35,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:35,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:35,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:35,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:35,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:03:35,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:35,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:35,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:35,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:35,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:35,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:35,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:35,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:35,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:35,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:35,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:35,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:35,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:35,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:35,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:35,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:35,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:35,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:35,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:35,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:35,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:35,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:35,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:35,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:35,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:35,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:35,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:35,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:35,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:35,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:35,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:35,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:35,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:35,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:35,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:35,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:35,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:35,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:35,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:35,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:35,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:35,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:35,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:35,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:35,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:35,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:35,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:35,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:35,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:35,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:35,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:35,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:35,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:35,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:35,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:03:35,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:35,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:35,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:35,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:35,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:35,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:35,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:35,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:35,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:35,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:35,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:03:35,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:35,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:35,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:35,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:35,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:35,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:35,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:35,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:35,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:35,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:35,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:03:35,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:35,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:35,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:35,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:35,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:35,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:35,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:35,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:35,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:35,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:35,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:03:35,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:35,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:35,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:35,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:35,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:35,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:03:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:35,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:35,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:35,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:03:35,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:35,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 14:03:35,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:35,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:35,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:35,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 14:03:35,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:35,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:03:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:35,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:35,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:35,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:03:35,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:35,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:03:35,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:35,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:35,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:35,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:03:35,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:36,538 INFO L134 CoverageAnalysis]: Checked inductivity of 4827 backedges. 1182 proven. 2 refuted. 0 times theorem prover too weak. 3643 trivial. 0 not checked. [2020-10-12 14:03:36,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160396986] [2020-10-12 14:03:36,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:36,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:03:36,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140687342] [2020-10-12 14:03:36,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:03:36,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:36,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:03:36,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:03:36,540 INFO L87 Difference]: Start difference. First operand 4749 states and 5343 transitions. Second operand 7 states. [2020-10-12 14:03:38,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:38,016 INFO L93 Difference]: Finished difference Result 10570 states and 12025 transitions. [2020-10-12 14:03:38,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:03:38,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1241 [2020-10-12 14:03:38,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:38,038 INFO L225 Difference]: With dead ends: 10570 [2020-10-12 14:03:38,039 INFO L226 Difference]: Without dead ends: 6009 [2020-10-12 14:03:38,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:03:38,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6009 states. [2020-10-12 14:03:38,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6009 to 5564. [2020-10-12 14:03:38,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5564 states. [2020-10-12 14:03:38,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 6259 transitions. [2020-10-12 14:03:38,141 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 6259 transitions. Word has length 1241 [2020-10-12 14:03:38,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:38,142 INFO L479 AbstractCegarLoop]: Abstraction has 5564 states and 6259 transitions. [2020-10-12 14:03:38,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:03:38,142 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 6259 transitions. [2020-10-12 14:03:38,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1357 [2020-10-12 14:03:38,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:38,167 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:38,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 14:03:38,168 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:38,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:38,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1326214064, now seen corresponding path program 1 times [2020-10-12 14:03:38,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:38,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [555966106] [2020-10-12 14:03:38,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:38,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:39,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:39,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:40,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:41,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:43,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:43,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1386 [2020-10-12 14:03:43,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:03:43,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 14:03:43,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:43,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:03:43,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 14:03:43,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-12 14:03:43,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:43,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:43,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:43,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:43,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:43,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:43,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:03:43,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:43,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:43,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:43,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:43,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:43,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:43,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:43,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:43,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:43,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:43,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:43,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:43,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:43,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:43,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:43,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:43,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:43,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:43,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:43,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:43,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:43,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:43,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:43,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:43,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:43,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:43,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:43,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:43,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:43,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:43,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:43,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:43,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:43,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:43,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:43,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:43,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:43,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:43,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:43,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:43,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:43,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:43,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:43,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:43,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:43,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:43,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:43,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:43,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:43,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:43,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:03:43,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:43,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:43,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:43,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:43,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:43,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:43,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:43,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:43,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:43,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:43,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:03:43,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:43,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:43,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:43,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:43,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:43,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:43,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:43,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:43,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:43,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:43,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:03:43,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:43,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:43,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:43,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:43,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:43,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:43,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:43,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:43,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:43,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:43,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:03:43,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:43,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:43,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:43,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:43,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:43,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:03:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:43,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:43,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:43,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:03:43,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:43,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 14:03:43,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:43,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:43,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:43,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 14:03:43,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:43,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:03:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:44,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:44,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:44,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:44,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:44,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:44,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-12 14:03:44,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:44,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:44,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:44,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 14:03:44,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:44,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-12 14:03:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:44,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:44,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:44,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:03:44,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:44,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:03:44,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:44,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:44,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:44,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:03:44,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 5895 backedges. 2156 proven. 6 refuted. 0 times theorem prover too weak. 3733 trivial. 0 not checked. [2020-10-12 14:03:44,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [555966106] [2020-10-12 14:03:44,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:44,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:03:44,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789700797] [2020-10-12 14:03:44,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:03:44,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:44,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:03:44,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:03:44,961 INFO L87 Difference]: Start difference. First operand 5564 states and 6259 transitions. Second operand 7 states. [2020-10-12 14:03:47,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:47,065 INFO L93 Difference]: Finished difference Result 11937 states and 13423 transitions. [2020-10-12 14:03:47,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:03:47,066 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1356 [2020-10-12 14:03:47,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:47,091 INFO L225 Difference]: With dead ends: 11937 [2020-10-12 14:03:47,091 INFO L226 Difference]: Without dead ends: 6377 [2020-10-12 14:03:47,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:03:47,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6377 states. [2020-10-12 14:03:47,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6377 to 6013. [2020-10-12 14:03:47,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6013 states. [2020-10-12 14:03:47,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 6711 transitions. [2020-10-12 14:03:47,209 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 6711 transitions. Word has length 1356 [2020-10-12 14:03:47,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:47,210 INFO L479 AbstractCegarLoop]: Abstraction has 6013 states and 6711 transitions. [2020-10-12 14:03:47,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:03:47,210 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 6711 transitions. [2020-10-12 14:03:47,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1449 [2020-10-12 14:03:47,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:47,235 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:03:47,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 14:03:47,235 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:47,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:47,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1425232440, now seen corresponding path program 1 times [2020-10-12 14:03:47,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:47,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484521646] [2020-10-12 14:03:47,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:47,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:48,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:49,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:49,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1478 [2020-10-12 14:03:49,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:49,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1497 [2020-10-12 14:03:49,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:49,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:49,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-12 14:03:49,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 14:03:49,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:49,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:49,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:49,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:49,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:49,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:49,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:03:49,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:49,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:49,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:49,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:49,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:49,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:49,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:49,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:49,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:49,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:49,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:49,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:49,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:49,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:49,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:49,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:49,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:49,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:49,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:03:49,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:49,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:49,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:49,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:49,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:49,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:49,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:49,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:49,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:49,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:49,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:03:49,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:49,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:49,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:49,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:49,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:49,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:49,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:49,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:49,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:03:49,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:49,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:49,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:49,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:49,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:49,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:49,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:49,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:49,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:49,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:49,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:03:49,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:49,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:49,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:49,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:49,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:49,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:49,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:49,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:49,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:49,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:49,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:03:49,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:49,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:49,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:49,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:49,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:49,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:49,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:49,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:49,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:49,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:49,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:03:49,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:49,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:49,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:49,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:49,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:49,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:49,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:49,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:49,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:49,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:49,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:03:49,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:49,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:49,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:49,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:49,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:49,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:03:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:49,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:49,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:49,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:03:49,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:49,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:03:49,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:49,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:49,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:49,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:49,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:49,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:03:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:49,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:49,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:49,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:03:49,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:49,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:03:49,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:49,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:49,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:49,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:49,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:49,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:03:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:49,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:49,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:49,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 14:03:49,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:49,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:03:49,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:49,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:49,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:49,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:03:49,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:50,458 INFO L134 CoverageAnalysis]: Checked inductivity of 6258 backedges. 470 proven. 11 refuted. 0 times theorem prover too weak. 5777 trivial. 0 not checked. [2020-10-12 14:03:50,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484521646] [2020-10-12 14:03:50,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:50,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:03:50,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139143913] [2020-10-12 14:03:50,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:03:50,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:50,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:03:50,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:03:50,461 INFO L87 Difference]: Start difference. First operand 6013 states and 6711 transitions. Second operand 5 states. [2020-10-12 14:03:51,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:03:51,811 INFO L93 Difference]: Finished difference Result 12576 states and 14198 transitions. [2020-10-12 14:03:51,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:03:51,815 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1448 [2020-10-12 14:03:51,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:03:51,832 INFO L225 Difference]: With dead ends: 12576 [2020-10-12 14:03:51,833 INFO L226 Difference]: Without dead ends: 6751 [2020-10-12 14:03:51,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:03:51,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6751 states. [2020-10-12 14:03:51,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6751 to 6751. [2020-10-12 14:03:51,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6751 states. [2020-10-12 14:03:51,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6751 states to 6751 states and 7576 transitions. [2020-10-12 14:03:51,955 INFO L78 Accepts]: Start accepts. Automaton has 6751 states and 7576 transitions. Word has length 1448 [2020-10-12 14:03:51,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:03:51,956 INFO L479 AbstractCegarLoop]: Abstraction has 6751 states and 7576 transitions. [2020-10-12 14:03:51,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:03:51,957 INFO L276 IsEmpty]: Start isEmpty. Operand 6751 states and 7576 transitions. [2020-10-12 14:03:51,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1535 [2020-10-12 14:03:51,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:03:51,984 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2020-10-12 14:03:51,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 14:03:51,984 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:03:51,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:03:51,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1507003461, now seen corresponding path program 1 times [2020-10-12 14:03:51,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:03:51,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294015396] [2020-10-12 14:03:51,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:03:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:52,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:53,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:57,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:57,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1566 [2020-10-12 14:03:57,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:03:57,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4764 [2020-10-12 14:03:57,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:57,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:57,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-12 14:03:57,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 14:03:57,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:57,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:03:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:57,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:57,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:57,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:03:57,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:57,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:03:57,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:57,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:57,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:57,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:57,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:57,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:03:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:57,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:57,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:57,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:03:57,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:57,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:57,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:57,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:57,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:57,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:57,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:57,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:03:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:57,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:57,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:57,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:03:57,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:57,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:57,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:57,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:57,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:57,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:57,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:57,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:03:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:57,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:57,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:57,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:03:57,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:57,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:03:57,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:57,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:57,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:03:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:57,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:57,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:57,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:03:57,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:57,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:03:57,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:57,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:57,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:57,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:57,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:57,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:03:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:57,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:57,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:57,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:03:57,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:57,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:03:57,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:57,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:57,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:57,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:57,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:57,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:03:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:57,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:57,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:57,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:03:57,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:57,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:03:57,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:57,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:57,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:57,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:57,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:57,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:03:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:57,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:57,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:57,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:03:57,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:57,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:03:57,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:57,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:57,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:57,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:57,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:03:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:57,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:57,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:57,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:03:57,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:57,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:03:57,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:57,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:57,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:03:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:57,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:57,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:57,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:03:57,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:57,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:03:57,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:57,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:57,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:57,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:57,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:57,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:03:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:57,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:57,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:57,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:03:57,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:57,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:03:57,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:57,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:03:57,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:57,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:03:57,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:57,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:03:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:57,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:57,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:57,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 14:03:57,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:03:57,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 14:03:57,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:57,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:03:57,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:03:57,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:03:57,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:57,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-12 14:03:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:03:57,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:57,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:03:58,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:03:58,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:03:58,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:03:58,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-12 14:03:58,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:03:58,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:03:58,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:03:58,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:03:58,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:03:58,963 INFO L134 CoverageAnalysis]: Checked inductivity of 7230 backedges. 1440 proven. 2 refuted. 0 times theorem prover too weak. 5788 trivial. 0 not checked. [2020-10-12 14:03:58,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294015396] [2020-10-12 14:03:58,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:03:58,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:03:58,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769275323] [2020-10-12 14:03:58,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:03:58,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:03:58,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:03:58,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:03:58,966 INFO L87 Difference]: Start difference. First operand 6751 states and 7576 transitions. Second operand 7 states. [2020-10-12 14:04:00,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:00,200 INFO L93 Difference]: Finished difference Result 12642 states and 14205 transitions. [2020-10-12 14:04:00,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:04:00,202 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1534 [2020-10-12 14:04:00,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:00,211 INFO L225 Difference]: With dead ends: 12642 [2020-10-12 14:04:00,211 INFO L226 Difference]: Without dead ends: 6047 [2020-10-12 14:04:00,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:04:00,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6047 states. [2020-10-12 14:04:00,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6047 to 6011. [2020-10-12 14:04:00,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6011 states. [2020-10-12 14:04:00,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6011 states to 6011 states and 6694 transitions. [2020-10-12 14:04:00,323 INFO L78 Accepts]: Start accepts. Automaton has 6011 states and 6694 transitions. Word has length 1534 [2020-10-12 14:04:00,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:00,325 INFO L479 AbstractCegarLoop]: Abstraction has 6011 states and 6694 transitions. [2020-10-12 14:04:00,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:04:00,326 INFO L276 IsEmpty]: Start isEmpty. Operand 6011 states and 6694 transitions. [2020-10-12 14:04:00,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1537 [2020-10-12 14:04:00,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:00,366 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 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, 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] [2020-10-12 14:04:00,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 14:04:00,367 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:00,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:00,368 INFO L82 PathProgramCache]: Analyzing trace with hash 230533271, now seen corresponding path program 1 times [2020-10-12 14:04:00,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:00,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458769321] [2020-10-12 14:04:00,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:00,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:01,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:04,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:04,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1568 [2020-10-12 14:04:04,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:04:04,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3321 [2020-10-12 14:04:04,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:04,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:04,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1520 [2020-10-12 14:04:04,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 14:04:04,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:04,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:04,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:04,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:04,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:04,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:04,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:04:04,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:04,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:04,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:04,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:04,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:04,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:04,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:04,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:04,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:04,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:04,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:04,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:04,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:04,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:04,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:04,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:04,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:04:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:04,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:04,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:04,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:04,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:04,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:04:04,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:04,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:04,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:04:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:04,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:04,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:04,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:04:04,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:04,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:04:04,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:04,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:04,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:04,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:04,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:04,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:04:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:04,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:04,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:04,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:04:04,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:04,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:04:04,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:04,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:04,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:04,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:04,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:04,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:04:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:04,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:04,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:04,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:04:04,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:04,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:04:04,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:04,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:04,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:04,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:04,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:04:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:04,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:04,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:04,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:04:04,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:04,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:04:04,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:04,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:04,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:04:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:04,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:04,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:04,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:04:04,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:04,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:04:04,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:04,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:04,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:04,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:04,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:04,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:04:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:04,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:04,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:04,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:04:04,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:04,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:04:04,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:04,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:04,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:04,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:04,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:04,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:04:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:04,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:04,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:04,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:04:04,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:04,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:04:04,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:04,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:04,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:04,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:04,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:04,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:04:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:04,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:04,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:04,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:04:04,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:04,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:04:04,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:04,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:04,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:04,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:04,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:04,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:04:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:04,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:04,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:04,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 14:04:04,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:04,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:04:04,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:04,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:04,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:04,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:04,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:04,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-12 14:04:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:04,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:04,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:04,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:04:04,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:04,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:04:04,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:04,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:04,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:04,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 14:04:04,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:05,712 INFO L134 CoverageAnalysis]: Checked inductivity of 7242 backedges. 513 proven. 12 refuted. 0 times theorem prover too weak. 6717 trivial. 0 not checked. [2020-10-12 14:04:05,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [458769321] [2020-10-12 14:04:05,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:04:05,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:04:05,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109059024] [2020-10-12 14:04:05,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:04:05,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:05,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:04:05,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:04:05,714 INFO L87 Difference]: Start difference. First operand 6011 states and 6694 transitions. Second operand 5 states. [2020-10-12 14:04:07,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:07,036 INFO L93 Difference]: Finished difference Result 12748 states and 14427 transitions. [2020-10-12 14:04:07,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:04:07,038 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1536 [2020-10-12 14:04:07,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:07,050 INFO L225 Difference]: With dead ends: 12748 [2020-10-12 14:04:07,050 INFO L226 Difference]: Without dead ends: 6925 [2020-10-12 14:04:07,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:04:07,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6925 states. [2020-10-12 14:04:07,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6925 to 6743. [2020-10-12 14:04:07,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6743 states. [2020-10-12 14:04:07,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 7549 transitions. [2020-10-12 14:04:07,168 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 7549 transitions. Word has length 1536 [2020-10-12 14:04:07,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:07,169 INFO L479 AbstractCegarLoop]: Abstraction has 6743 states and 7549 transitions. [2020-10-12 14:04:07,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:04:07,170 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 7549 transitions. [2020-10-12 14:04:07,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1543 [2020-10-12 14:04:07,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:07,196 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 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, 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] [2020-10-12 14:04:07,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 14:04:07,197 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:07,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:07,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1550538645, now seen corresponding path program 1 times [2020-10-12 14:04:07,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:07,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615363690] [2020-10-12 14:04:07,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:07,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:08,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:09,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:10,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:10,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1574 [2020-10-12 14:04:10,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:04:10,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3493 [2020-10-12 14:04:10,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:10,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:10,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1526 [2020-10-12 14:04:10,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 14:04:10,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:11,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:11,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:11,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:11,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:11,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:11,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:04:11,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:11,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:11,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:11,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:11,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:11,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:11,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:11,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:11,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:11,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:11,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 14:04:11,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:11,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:11,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:11,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:11,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:11,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:04:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:11,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:11,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:11,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:11,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:11,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:04:11,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:11,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:11,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:11,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:04:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:11,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:11,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:11,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:04:11,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:11,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:04:11,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:11,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:11,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:11,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:11,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:11,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:04:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:11,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:11,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:11,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:04:11,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:11,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:11,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:11,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:11,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:11,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:11,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:11,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:04:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:11,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:11,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:11,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:04:11,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:11,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:04:11,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:11,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:11,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:11,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:11,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:11,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:04:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:11,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:11,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:11,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:04:11,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:11,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:04:11,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:11,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:11,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:11,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:11,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:11,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:04:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:11,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:11,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:11,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:04:11,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:11,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:04:11,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:11,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:11,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:11,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:11,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:11,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:04:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:11,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:11,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:11,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:04:11,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:11,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:04:11,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:11,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:11,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:11,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:11,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:11,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:04:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:11,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:11,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:11,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:04:11,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:11,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:04:11,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:11,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:11,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:11,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:11,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:11,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:04:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:11,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:11,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:11,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:04:11,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:11,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:04:11,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:11,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:11,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:11,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:11,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:11,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:04:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:11,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:11,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:11,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 14:04:11,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:11,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:04:11,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:11,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:11,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:11,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:11,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:11,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-12 14:04:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:11,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:11,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:11,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-12 14:04:11,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:11,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 14:04:11,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:11,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:11,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:11,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:04:11,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:12,915 INFO L134 CoverageAnalysis]: Checked inductivity of 7296 backedges. 513 proven. 12 refuted. 0 times theorem prover too weak. 6771 trivial. 0 not checked. [2020-10-12 14:04:12,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615363690] [2020-10-12 14:04:12,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:04:12,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:04:12,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905057632] [2020-10-12 14:04:12,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:04:12,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:12,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:04:12,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:04:12,922 INFO L87 Difference]: Start difference. First operand 6743 states and 7549 transitions. Second operand 5 states. [2020-10-12 14:04:14,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:14,212 INFO L93 Difference]: Finished difference Result 13575 states and 15271 transitions. [2020-10-12 14:04:14,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:04:14,213 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1542 [2020-10-12 14:04:14,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:14,221 INFO L225 Difference]: With dead ends: 13575 [2020-10-12 14:04:14,222 INFO L226 Difference]: Without dead ends: 6096 [2020-10-12 14:04:14,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:04:14,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6096 states. [2020-10-12 14:04:14,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6096 to 6094. [2020-10-12 14:04:14,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6094 states. [2020-10-12 14:04:14,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6094 states to 6094 states and 6655 transitions. [2020-10-12 14:04:14,306 INFO L78 Accepts]: Start accepts. Automaton has 6094 states and 6655 transitions. Word has length 1542 [2020-10-12 14:04:14,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:14,306 INFO L479 AbstractCegarLoop]: Abstraction has 6094 states and 6655 transitions. [2020-10-12 14:04:14,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:04:14,307 INFO L276 IsEmpty]: Start isEmpty. Operand 6094 states and 6655 transitions. [2020-10-12 14:04:14,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1626 [2020-10-12 14:04:14,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:14,328 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 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, 3, 3, 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] [2020-10-12 14:04:14,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-12 14:04:14,329 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:14,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:14,329 INFO L82 PathProgramCache]: Analyzing trace with hash -862455096, now seen corresponding path program 1 times [2020-10-12 14:04:14,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:14,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736341022] [2020-10-12 14:04:14,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:14,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:15,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:16,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:18,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:18,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1657 [2020-10-12 14:04:18,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:04:18,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4018 [2020-10-12 14:04:18,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:18,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:04:18,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1432 [2020-10-12 14:04:18,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-10-12 14:04:18,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:18,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:18,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:18,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:18,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:18,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:18,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:04:18,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:18,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:18,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:18,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:18,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:18,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:18,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:18,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:18,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:04:18,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:18,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:18,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:18,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:18,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:18,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:18,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:18,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:04:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:18,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:18,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:18,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:04:18,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:18,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:04:18,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:18,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:18,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:18,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:04:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:18,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:18,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:18,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:04:18,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:18,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:18,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:18,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:18,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:04:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:18,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:18,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:18,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:04:18,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:18,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:04:18,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:18,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:18,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:18,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:18,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:18,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:04:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:18,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:18,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:18,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:04:18,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:18,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:04:18,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:18,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:18,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:18,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:18,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:18,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:04:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:18,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:18,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:18,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:04:18,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:18,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:04:18,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:18,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:18,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:18,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:18,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:18,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:04:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:18,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:18,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:18,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:04:18,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:18,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:04:18,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:18,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:19,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:04:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:19,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:19,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:19,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:04:19,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:19,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:04:19,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:19,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:19,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:04:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:19,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:19,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:19,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:04:19,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:19,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:04:19,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:19,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:19,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:19,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:19,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:19,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:04:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:19,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:19,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:19,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:04:19,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:19,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:04:19,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:19,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:04:19,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:19,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:04:19,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:19,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:04:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:19,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:19,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:19,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 14:04:19,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:19,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:04:19,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:19,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:19,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:19,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-12 14:04:19,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:19,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-12 14:04:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:19,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:19,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:19,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 14:04:19,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:19,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-12 14:04:19,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:19,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:19,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:19,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 14:04:19,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:20,404 INFO L134 CoverageAnalysis]: Checked inductivity of 7700 backedges. 1845 proven. 51 refuted. 0 times theorem prover too weak. 5804 trivial. 0 not checked. [2020-10-12 14:04:20,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1736341022] [2020-10-12 14:04:20,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:04:20,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 14:04:20,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892533000] [2020-10-12 14:04:20,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 14:04:20,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:20,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 14:04:20,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:04:20,407 INFO L87 Difference]: Start difference. First operand 6094 states and 6655 transitions. Second operand 6 states.