/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=NARROWEST --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/Problem01_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 05:59:31,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 05:59:31,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 05:59:31,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 05:59:31,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 05:59:31,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 05:59:31,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 05:59:31,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 05:59:31,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 05:59:31,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 05:59:31,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 05:59:31,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 05:59:31,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 05:59:31,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 05:59:31,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 05:59:31,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 05:59:31,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 05:59:31,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 05:59:31,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 05:59:31,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 05:59:31,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 05:59:31,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 05:59:31,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 05:59:31,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 05:59:31,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 05:59:31,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 05:59:31,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 05:59:31,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 05:59:31,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 05:59:31,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 05:59:31,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 05:59:31,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 05:59:31,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 05:59:31,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 05:59:31,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 05:59:31,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 05:59:31,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 05:59:31,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 05:59:31,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 05:59:31,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 05:59:31,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 05:59:31,679 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 [2020-10-13 05:59:31,719 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 05:59:31,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 05:59:31,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 05:59:31,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 05:59:31,721 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 05:59:31,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 05:59:31,722 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 05:59:31,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 05:59:31,722 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 05:59:31,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 05:59:31,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 05:59:31,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 05:59:31,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 05:59:31,724 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 05:59:31,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 05:59:31,724 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 05:59:31,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 05:59:31,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 05:59:31,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 05:59:31,725 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 05:59:31,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 05:59:31,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 05:59:31,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 05:59:31,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 05:59:31,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 05:59:31,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 05:59:31,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 05:59:31,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 05:59:31,727 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 05:59:31,727 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 05:59:32,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 05:59:32,053 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 05:59:32,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 05:59:32,059 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 05:59:32,060 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 05:59:32,060 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-10-13 05:59:32,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c85366610/f89c109840c24a2088cc384792af8727/FLAGf45e1cad8 [2020-10-13 05:59:32,749 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 05:59:32,750 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-10-13 05:59:32,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c85366610/f89c109840c24a2088cc384792af8727/FLAGf45e1cad8 [2020-10-13 05:59:32,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c85366610/f89c109840c24a2088cc384792af8727 [2020-10-13 05:59:32,990 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 05:59:32,992 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 05:59:32,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 05:59:32,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 05:59:33,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 05:59:33,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:59:32" (1/1) ... [2020-10-13 05:59:33,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6317371b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:33, skipping insertion in model container [2020-10-13 05:59:33,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:59:32" (1/1) ... [2020-10-13 05:59:33,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 05:59:33,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 05:59:33,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:59:33,598 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 05:59:33,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:59:33,774 INFO L208 MainTranslator]: Completed translation [2020-10-13 05:59:33,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:33 WrapperNode [2020-10-13 05:59:33,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 05:59:33,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 05:59:33,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 05:59:33,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 05:59:33,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:33" (1/1) ... [2020-10-13 05:59:33,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:33" (1/1) ... [2020-10-13 05:59:33,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:33" (1/1) ... [2020-10-13 05:59:33,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:33" (1/1) ... [2020-10-13 05:59:33,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:33" (1/1) ... [2020-10-13 05:59:33,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:33" (1/1) ... [2020-10-13 05:59:33,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:33" (1/1) ... [2020-10-13 05:59:33,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 05:59:33,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 05:59:33,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 05:59:33,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 05:59:33,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:33" (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 [2020-10-13 05:59:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 05:59:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 05:59:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 05:59:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 05:59:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 05:59:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 05:59:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 05:59:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 05:59:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 05:59:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 05:59:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 05:59:35,095 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 05:59:35,095 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 05:59:35,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:59:35 BoogieIcfgContainer [2020-10-13 05:59:35,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 05:59:35,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 05:59:35,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 05:59:35,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 05:59:35,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:59:32" (1/3) ... [2020-10-13 05:59:35,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6bcac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:59:35, skipping insertion in model container [2020-10-13 05:59:35,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:59:33" (2/3) ... [2020-10-13 05:59:35,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6bcac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:59:35, skipping insertion in model container [2020-10-13 05:59:35,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:59:35" (3/3) ... [2020-10-13 05:59:35,111 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label08.c [2020-10-13 05:59:35,122 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 05:59:35,131 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 05:59:35,146 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 05:59:35,174 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 05:59:35,174 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 05:59:35,174 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 05:59:35,174 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 05:59:35,174 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 05:59:35,175 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 05:59:35,175 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 05:59:35,175 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 05:59:35,198 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 05:59:35,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-13 05:59:35,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:35,213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:59:35,213 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:35,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:35,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1920403729, now seen corresponding path program 1 times [2020-10-13 05:59:35,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:35,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395609827] [2020-10-13 05:59:35,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:35,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:35,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:37,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:37,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 05:59:37,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:59:37,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2101 [2020-10-13 05:59:37,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:37,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 05:59:37,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 05:59:37,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 05:59:37,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 05:59:38,407 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-10-13 05:59:38,709 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2020-10-13 05:59:39,097 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 50 [2020-10-13 05:59:39,364 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 47 [2020-10-13 05:59:39,593 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 44 [2020-10-13 05:59:39,824 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 40 [2020-10-13 05:59:40,043 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 36 [2020-10-13 05:59:40,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:40,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:40,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:40,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:40,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:40,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 05:59:40,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:40,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:40,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:40,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 05:59:40,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:40,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:59:40,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [395609827] [2020-10-13 05:59:40,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:59:40,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 05:59:40,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117499961] [2020-10-13 05:59:40,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 05:59:40,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:40,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 05:59:40,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-13 05:59:40,345 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-13 05:59:40,654 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-13 05:59:40,813 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-13 05:59:41,061 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 05:59:41,435 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2020-10-13 05:59:41,849 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2020-10-13 05:59:42,474 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 108 [2020-10-13 05:59:43,166 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 105 [2020-10-13 05:59:43,664 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 100 [2020-10-13 05:59:44,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:44,900 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 05:59:44,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 05:59:44,904 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 119 [2020-10-13 05:59:44,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:44,918 INFO L225 Difference]: With dead ends: 474 [2020-10-13 05:59:44,919 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 05:59:44,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-10-13 05:59:44,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 05:59:44,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 05:59:44,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 05:59:44,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 05:59:44,997 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 119 [2020-10-13 05:59:44,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:44,998 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 05:59:44,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 05:59:44,998 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 05:59:45,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-13 05:59:45,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:45,003 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:59:45,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 05:59:45,003 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:45,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:45,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1091899828, now seen corresponding path program 1 times [2020-10-13 05:59:45,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:45,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280632725] [2020-10-13 05:59:45,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:45,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:45,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:45,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:46,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:46,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 05:59:46,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:59:46,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1384 [2020-10-13 05:59:46,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:46,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:59:46,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 05:59:46,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 05:59:46,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:59:46,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:46,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:46,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:46,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:46,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:46,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 05:59:46,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:46,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:46,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:46,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:46,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-13 05:59:46,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:47,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:47,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:47,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:59:47,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:47,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 05:59:47,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:47,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:47,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:47,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 05:59:47,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:47,195 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:59:47,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280632725] [2020-10-13 05:59:47,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:47,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 05:59:47,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670644548] [2020-10-13 05:59:47,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:59:47,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:47,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:59:47,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:59:47,202 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 05:59:47,994 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 05:59:48,755 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 05:59:49,073 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 05:59:49,483 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 05:59:49,704 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 05:59:50,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:50,350 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 05:59:50,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 05:59:50,351 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-10-13 05:59:50,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:50,356 INFO L225 Difference]: With dead ends: 433 [2020-10-13 05:59:50,356 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 05:59:50,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 05:59:50,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 05:59:50,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 05:59:50,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 05:59:50,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 05:59:50,383 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 127 [2020-10-13 05:59:50,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:50,384 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 05:59:50,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:59:50,384 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 05:59:50,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-13 05:59:50,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:50,388 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:59:50,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 05:59:50,388 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:50,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:50,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1525536778, now seen corresponding path program 1 times [2020-10-13 05:59:50,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:50,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233639876] [2020-10-13 05:59:50,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:50,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:50,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:50,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:51,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:51,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-13 05:59:51,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:59:51,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1055 [2020-10-13 05:59:51,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:51,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 05:59:51,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:59:51,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 05:59:51,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:51,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:51,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:51,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:51,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:51,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:51,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 05:59:51,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:51,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:51,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:51,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:51,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:51,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:51,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:51,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:51,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 05:59:51,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:51,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 05:59:51,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:51,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:51,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:51,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:59:51,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:52,094 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:59:52,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233639876] [2020-10-13 05:59:52,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:52,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 05:59:52,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266694497] [2020-10-13 05:59:52,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 05:59:52,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:52,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 05:59:52,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 05:59:52,104 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 05:59:53,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:53,309 INFO L93 Difference]: Finished difference Result 587 states and 809 transitions. [2020-10-13 05:59:53,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 05:59:53,310 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2020-10-13 05:59:53,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:53,314 INFO L225 Difference]: With dead ends: 587 [2020-10-13 05:59:53,315 INFO L226 Difference]: Without dead ends: 278 [2020-10-13 05:59:53,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 05:59:53,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-13 05:59:53,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 276. [2020-10-13 05:59:53,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 05:59:53,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 330 transitions. [2020-10-13 05:59:53,337 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 330 transitions. Word has length 130 [2020-10-13 05:59:53,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:53,338 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 330 transitions. [2020-10-13 05:59:53,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 05:59:53,338 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 330 transitions. [2020-10-13 05:59:53,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-13 05:59:53,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:53,342 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:59:53,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 05:59:53,342 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:53,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:53,343 INFO L82 PathProgramCache]: Analyzing trace with hash -292838030, now seen corresponding path program 1 times [2020-10-13 05:59:53,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:53,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768225347] [2020-10-13 05:59:53,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:53,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:53,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:53,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:54,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:54,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 05:59:54,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:59:54,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1588 [2020-10-13 05:59:54,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:54,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:59:54,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 05:59:54,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 05:59:54,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:55,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:55,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:55,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:55,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:55,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:55,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:59:55,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:55,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:55,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:55,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:55,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:55,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:55,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:55,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:55,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 05:59:55,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:55,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 05:59:55,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:55,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:55,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:55,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 05:59:55,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:55,655 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:59:55,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768225347] [2020-10-13 05:59:55,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:55,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 05:59:55,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855225974] [2020-10-13 05:59:55,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:59:55,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:55,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:59:55,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:59:55,657 INFO L87 Difference]: Start difference. First operand 276 states and 330 transitions. Second operand 13 states. [2020-10-13 05:59:56,556 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 05:59:56,963 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 05:59:57,227 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 05:59:57,509 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 05:59:57,886 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 05:59:58,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:58,341 INFO L93 Difference]: Finished difference Result 552 states and 695 transitions. [2020-10-13 05:59:58,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 05:59:58,342 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 160 [2020-10-13 05:59:58,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:58,345 INFO L225 Difference]: With dead ends: 552 [2020-10-13 05:59:58,345 INFO L226 Difference]: Without dead ends: 325 [2020-10-13 05:59:58,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 05:59:58,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-13 05:59:58,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 319. [2020-10-13 05:59:58,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-13 05:59:58,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 378 transitions. [2020-10-13 05:59:58,389 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 378 transitions. Word has length 160 [2020-10-13 05:59:58,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:58,390 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 378 transitions. [2020-10-13 05:59:58,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:59:58,390 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 378 transitions. [2020-10-13 05:59:58,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-13 05:59:58,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:58,399 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:59:58,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 05:59:58,400 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:58,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:58,403 INFO L82 PathProgramCache]: Analyzing trace with hash -612230579, now seen corresponding path program 1 times [2020-10-13 05:59:58,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:58,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796798939] [2020-10-13 05:59:58,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:58,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:58,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:58,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:00,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:00,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:02,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:02,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 06:00:02,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:00:02,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4198 [2020-10-13 06:00:02,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:02,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:02,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:00:02,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:00:02,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:03,143 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-13 06:00:03,266 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 45 [2020-10-13 06:00:03,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:03,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:03,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:03,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:03,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:03,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:03,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:03,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:03,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:03,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:03,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:03,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:03,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:03,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:03,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:00:03,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:03,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:03,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:03,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:03,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:03,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:03,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:03,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:00:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:03,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:03,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:03,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:00:03,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:03,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 06:00:03,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:03,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:03,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:03,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:00:03,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:04,133 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:00:04,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796798939] [2020-10-13 06:00:04,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:04,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:04,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429962426] [2020-10-13 06:00:04,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:04,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:04,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:04,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:04,136 INFO L87 Difference]: Start difference. First operand 319 states and 378 transitions. Second operand 13 states. [2020-10-13 06:00:04,735 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2020-10-13 06:00:04,930 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:00:05,138 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:00:05,542 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 113 [2020-10-13 06:00:06,039 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 110 [2020-10-13 06:00:06,431 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 107 [2020-10-13 06:00:06,739 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2020-10-13 06:00:07,160 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 99 [2020-10-13 06:00:07,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:07,897 INFO L93 Difference]: Finished difference Result 648 states and 810 transitions. [2020-10-13 06:00:07,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:00:07,897 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 177 [2020-10-13 06:00:07,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:07,902 INFO L225 Difference]: With dead ends: 648 [2020-10-13 06:00:07,902 INFO L226 Difference]: Without dead ends: 395 [2020-10-13 06:00:07,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:00:07,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-10-13 06:00:07,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 391. [2020-10-13 06:00:07,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-10-13 06:00:07,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 456 transitions. [2020-10-13 06:00:07,921 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 456 transitions. Word has length 177 [2020-10-13 06:00:07,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:07,921 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 456 transitions. [2020-10-13 06:00:07,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:07,922 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 456 transitions. [2020-10-13 06:00:07,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-13 06:00:07,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:07,925 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:07,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:00:07,925 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:07,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:07,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1139574750, now seen corresponding path program 1 times [2020-10-13 06:00:07,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:07,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1968645769] [2020-10-13 06:00:07,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:07,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:08,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:08,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:09,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:09,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-13 06:00:09,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:00:09,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1826 [2020-10-13 06:00:09,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:00:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:00:09,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:10,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:10,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:10,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:10,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:10,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:10,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:10,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:10,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:10,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:10,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:10,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:10,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:10,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:10,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:10,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:10,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:10,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 06:00:10,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:10,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:10,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:10,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:00:10,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:10,907 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:00:10,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1968645769] [2020-10-13 06:00:10,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:10,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:10,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338439492] [2020-10-13 06:00:10,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:10,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:10,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:10,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:10,911 INFO L87 Difference]: Start difference. First operand 391 states and 456 transitions. Second operand 13 states. [2020-10-13 06:00:11,720 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-13 06:00:12,139 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-13 06:00:12,619 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2020-10-13 06:00:12,881 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2020-10-13 06:00:13,149 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2020-10-13 06:00:13,443 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2020-10-13 06:00:14,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:14,081 INFO L93 Difference]: Finished difference Result 787 states and 964 transitions. [2020-10-13 06:00:14,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:00:14,082 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 182 [2020-10-13 06:00:14,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:14,091 INFO L225 Difference]: With dead ends: 787 [2020-10-13 06:00:14,091 INFO L226 Difference]: Without dead ends: 442 [2020-10-13 06:00:14,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:00:14,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-13 06:00:14,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-13 06:00:14,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-13 06:00:14,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 508 transitions. [2020-10-13 06:00:14,136 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 508 transitions. Word has length 182 [2020-10-13 06:00:14,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:14,137 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 508 transitions. [2020-10-13 06:00:14,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:14,137 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 508 transitions. [2020-10-13 06:00:14,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-13 06:00:14,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:14,140 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:14,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:00:14,141 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:14,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:14,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1358895167, now seen corresponding path program 1 times [2020-10-13 06:00:14,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:14,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393786371] [2020-10-13 06:00:14,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:14,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:14,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:14,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:15,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:17,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:17,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-13 06:00:17,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:00:17,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3734 [2020-10-13 06:00:17,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:17,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:17,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:00:17,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:00:17,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:18,400 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2020-10-13 06:00:18,536 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-13 06:00:18,658 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 41 [2020-10-13 06:00:19,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:19,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:19,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:19,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:19,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:19,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:19,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:19,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:19,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:19,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:19,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:19,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:19,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:19,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:19,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:00:19,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:19,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:00:19,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:19,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:19,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:19,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:19,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:19,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:00:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:19,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:19,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:19,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:00:19,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:19,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:00:19,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:19,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:19,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:19,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:00:19,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:19,286 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 06:00:19,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393786371] [2020-10-13 06:00:19,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:19,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:00:19,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066847969] [2020-10-13 06:00:19,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:00:19,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:19,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:00:19,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:00:19,288 INFO L87 Difference]: Start difference. First operand 442 states and 508 transitions. Second operand 14 states. [2020-10-13 06:00:20,053 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-13 06:00:20,379 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2020-10-13 06:00:20,747 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2020-10-13 06:00:21,183 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-10-13 06:00:21,491 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-10-13 06:00:21,927 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-10-13 06:00:22,306 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-13 06:00:22,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:22,647 INFO L93 Difference]: Finished difference Result 880 states and 1055 transitions. [2020-10-13 06:00:22,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:00:22,649 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 193 [2020-10-13 06:00:22,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:22,652 INFO L225 Difference]: With dead ends: 880 [2020-10-13 06:00:22,652 INFO L226 Difference]: Without dead ends: 504 [2020-10-13 06:00:22,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:00:22,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-10-13 06:00:22,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-10-13 06:00:22,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-10-13 06:00:22,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 576 transitions. [2020-10-13 06:00:22,673 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 576 transitions. Word has length 193 [2020-10-13 06:00:22,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:22,673 INFO L479 AbstractCegarLoop]: Abstraction has 504 states and 576 transitions. [2020-10-13 06:00:22,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:00:22,673 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 576 transitions. [2020-10-13 06:00:22,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-13 06:00:22,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:22,676 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:22,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:00:22,677 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:22,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:22,677 INFO L82 PathProgramCache]: Analyzing trace with hash 733776751, now seen corresponding path program 1 times [2020-10-13 06:00:22,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:22,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117305654] [2020-10-13 06:00:22,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:22,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:22,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:23,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:23,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:25,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:25,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-10-13 06:00:25,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:00:25,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2811 [2020-10-13 06:00:25,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:00:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:00:25,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:00:25,939 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:00:26,089 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2020-10-13 06:00:26,233 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2020-10-13 06:00:26,357 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 37 [2020-10-13 06:00:26,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:26,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:26,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:26,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:26,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:26,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:26,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:26,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:26,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:26,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:26,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:26,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:26,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:26,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:26,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:00:26,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:26,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:26,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:26,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:26,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:26,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:26,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:26,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:00:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:26,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:26,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:26,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:00:26,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:26,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:00:26,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:26,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:26,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:26,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:00:26,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:26,864 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:00:26,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117305654] [2020-10-13 06:00:26,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:26,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:26,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203311774] [2020-10-13 06:00:26,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:26,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:26,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:26,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:26,867 INFO L87 Difference]: Start difference. First operand 504 states and 576 transitions. Second operand 13 states. [2020-10-13 06:00:27,693 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:00:28,134 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:00:28,579 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:00:28,911 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:00:29,252 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:00:29,649 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:00:30,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:30,055 INFO L93 Difference]: Finished difference Result 1002 states and 1186 transitions. [2020-10-13 06:00:30,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:00:30,057 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 196 [2020-10-13 06:00:30,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:30,060 INFO L225 Difference]: With dead ends: 1002 [2020-10-13 06:00:30,061 INFO L226 Difference]: Without dead ends: 547 [2020-10-13 06:00:30,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:00:30,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2020-10-13 06:00:30,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 542. [2020-10-13 06:00:30,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-10-13 06:00:30,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 621 transitions. [2020-10-13 06:00:30,083 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 621 transitions. Word has length 196 [2020-10-13 06:00:30,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:30,084 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 621 transitions. [2020-10-13 06:00:30,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:30,084 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 621 transitions. [2020-10-13 06:00:30,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-13 06:00:30,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:30,088 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:30,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:00:30,088 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:30,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:30,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1794108107, now seen corresponding path program 1 times [2020-10-13 06:00:30,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:30,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832322601] [2020-10-13 06:00:30,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:30,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:30,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:30,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:30,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:32,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:32,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-13 06:00:32,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:00:32,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2015 [2020-10-13 06:00:32,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:32,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:32,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:00:32,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:00:32,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:32,452 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-10-13 06:00:32,615 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2020-10-13 06:00:32,770 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 43 [2020-10-13 06:00:32,914 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2020-10-13 06:00:33,046 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 37 [2020-10-13 06:00:33,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:33,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:33,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:33,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:33,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:33,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:33,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:33,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:33,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:33,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:00:33,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:33,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:00:33,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:33,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:33,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:33,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:33,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:00:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:33,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:00:33,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:33,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:00:33,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:33,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:33,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:00:33,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:33,561 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:00:33,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832322601] [2020-10-13 06:00:33,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:33,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:33,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44981635] [2020-10-13 06:00:33,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:33,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:33,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:33,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:33,563 INFO L87 Difference]: Start difference. First operand 542 states and 621 transitions. Second operand 13 states. [2020-10-13 06:00:34,366 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:00:34,827 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-13 06:00:35,265 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-13 06:00:35,614 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 106 [2020-10-13 06:00:35,940 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2020-10-13 06:00:36,369 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 98 [2020-10-13 06:00:36,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:36,769 INFO L93 Difference]: Finished difference Result 1080 states and 1278 transitions. [2020-10-13 06:00:36,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:00:36,770 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 199 [2020-10-13 06:00:36,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:36,774 INFO L225 Difference]: With dead ends: 1080 [2020-10-13 06:00:36,774 INFO L226 Difference]: Without dead ends: 587 [2020-10-13 06:00:36,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:00:36,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2020-10-13 06:00:36,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 585. [2020-10-13 06:00:36,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-13 06:00:36,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 671 transitions. [2020-10-13 06:00:36,797 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 671 transitions. Word has length 199 [2020-10-13 06:00:36,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:36,797 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 671 transitions. [2020-10-13 06:00:36,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:36,798 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 671 transitions. [2020-10-13 06:00:36,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-13 06:00:36,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:36,800 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:36,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:00:36,801 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:36,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:36,801 INFO L82 PathProgramCache]: Analyzing trace with hash 453468022, now seen corresponding path program 1 times [2020-10-13 06:00:36,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:36,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126743755] [2020-10-13 06:00:36,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:36,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:36,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:36,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:37,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:37,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:39,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:39,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-13 06:00:39,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:00:39,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2505 [2020-10-13 06:00:39,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:39,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:39,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 06:00:39,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:00:39,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:39,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:39,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:39,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:39,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:39,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:39,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:39,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:39,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:39,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:39,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:39,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:39,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:39,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:39,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:39,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:00:39,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:39,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:39,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:39,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:39,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:39,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:39,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:39,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:00:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:39,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:39,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:39,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:00:39,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:39,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:00:39,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:39,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:39,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:00:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:39,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:39,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:39,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:00:39,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:39,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:00:39,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:39,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:00:39,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:39,980 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:00:39,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126743755] [2020-10-13 06:00:39,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:39,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:39,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775621271] [2020-10-13 06:00:39,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:39,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:39,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:39,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:39,982 INFO L87 Difference]: Start difference. First operand 585 states and 671 transitions. Second operand 13 states. [2020-10-13 06:00:41,591 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-13 06:00:41,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:41,880 INFO L93 Difference]: Finished difference Result 1162 states and 1374 transitions. [2020-10-13 06:00:41,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:00:41,885 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 203 [2020-10-13 06:00:41,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:41,889 INFO L225 Difference]: With dead ends: 1162 [2020-10-13 06:00:41,889 INFO L226 Difference]: Without dead ends: 626 [2020-10-13 06:00:41,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:00:41,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2020-10-13 06:00:41,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 585. [2020-10-13 06:00:41,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-13 06:00:41,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 671 transitions. [2020-10-13 06:00:41,912 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 671 transitions. Word has length 203 [2020-10-13 06:00:41,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:41,913 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 671 transitions. [2020-10-13 06:00:41,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:41,913 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 671 transitions. [2020-10-13 06:00:41,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-13 06:00:41,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:41,916 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:41,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:00:41,916 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:41,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:41,917 INFO L82 PathProgramCache]: Analyzing trace with hash -2131252716, now seen corresponding path program 1 times [2020-10-13 06:00:41,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:41,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364274433] [2020-10-13 06:00:41,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:41,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:42,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:42,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:42,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:42,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:44,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:44,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-13 06:00:44,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:00:44,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2167 [2020-10-13 06:00:44,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:44,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:44,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:00:44,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:00:44,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:44,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:44,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:44,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:44,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:44,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:44,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:44,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:44,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:44,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:44,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:44,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:44,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:44,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:44,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:44,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:00:44,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:44,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:44,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:44,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:44,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:44,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:44,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:44,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:00:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:44,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:44,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:44,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:00:44,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:44,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:00:44,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:44,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:44,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:44,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:44,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:44,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:00:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:44,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:44,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:44,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:00:44,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:44,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:00:44,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:44,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:44,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:44,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:00:44,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:44,771 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-13 06:00:44,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364274433] [2020-10-13 06:00:44,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:44,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:44,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807228722] [2020-10-13 06:00:44,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:44,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:44,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:44,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:44,774 INFO L87 Difference]: Start difference. First operand 585 states and 671 transitions. Second operand 13 states. [2020-10-13 06:00:45,062 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-13 06:00:45,277 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:00:45,626 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-13 06:00:46,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:46,922 INFO L93 Difference]: Finished difference Result 1197 states and 1422 transitions. [2020-10-13 06:00:46,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:00:46,928 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 209 [2020-10-13 06:00:46,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:46,932 INFO L225 Difference]: With dead ends: 1197 [2020-10-13 06:00:46,932 INFO L226 Difference]: Without dead ends: 678 [2020-10-13 06:00:46,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:00:46,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-10-13 06:00:46,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 593. [2020-10-13 06:00:46,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-13 06:00:46,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 682 transitions. [2020-10-13 06:00:46,955 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 682 transitions. Word has length 209 [2020-10-13 06:00:46,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:46,955 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 682 transitions. [2020-10-13 06:00:46,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:46,956 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 682 transitions. [2020-10-13 06:00:46,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-13 06:00:46,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:46,958 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:46,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:00:46,959 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:46,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:46,959 INFO L82 PathProgramCache]: Analyzing trace with hash -326921044, now seen corresponding path program 1 times [2020-10-13 06:00:46,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:46,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077381537] [2020-10-13 06:00:46,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:47,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:47,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:47,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:47,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:47,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:49,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:49,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-13 06:00:49,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:00:49,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2729 [2020-10-13 06:00:49,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:49,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:49,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:00:49,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:00:49,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:50,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:50,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:50,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:50,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:50,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:50,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:50,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:50,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:50,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:50,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:50,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:50,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:50,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:50,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:50,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:00:50,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:50,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:50,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:50,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:50,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:50,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:50,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:50,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:00:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:50,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:50,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:50,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:00:50,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:50,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:00:50,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:50,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:50,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:50,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:50,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:50,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:00:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:50,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:50,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:50,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:00:50,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:50,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:00:50,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:50,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:50,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:50,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:00:50,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:50,346 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:00:50,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077381537] [2020-10-13 06:00:50,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:50,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:50,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205045379] [2020-10-13 06:00:50,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:50,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:50,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:50,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:50,348 INFO L87 Difference]: Start difference. First operand 593 states and 682 transitions. Second operand 13 states. [2020-10-13 06:00:50,764 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-13 06:00:51,033 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:00:51,287 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-13 06:00:51,449 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-13 06:00:52,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:52,238 INFO L93 Difference]: Finished difference Result 1183 states and 1405 transitions. [2020-10-13 06:00:52,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:00:52,239 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 221 [2020-10-13 06:00:52,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:52,243 INFO L225 Difference]: With dead ends: 1183 [2020-10-13 06:00:52,243 INFO L226 Difference]: Without dead ends: 639 [2020-10-13 06:00:52,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:00:52,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2020-10-13 06:00:52,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 593. [2020-10-13 06:00:52,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-13 06:00:52,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 681 transitions. [2020-10-13 06:00:52,265 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 681 transitions. Word has length 221 [2020-10-13 06:00:52,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:52,266 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 681 transitions. [2020-10-13 06:00:52,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:52,266 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 681 transitions. [2020-10-13 06:00:52,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-13 06:00:52,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:52,268 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:52,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:00:52,269 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:52,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:52,269 INFO L82 PathProgramCache]: Analyzing trace with hash -747299337, now seen corresponding path program 1 times [2020-10-13 06:00:52,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:52,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804680169] [2020-10-13 06:00:52,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:52,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:52,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:52,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:52,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:54,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:54,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-10-13 06:00:54,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:00:54,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1774 [2020-10-13 06:00:54,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:54,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:54,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:00:54,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:00:54,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:54,508 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 34 [2020-10-13 06:00:54,629 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 32 [2020-10-13 06:00:54,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:54,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:54,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:54,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:54,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:54,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:54,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:54,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:54,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:54,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:54,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:54,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:54,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:54,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:54,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:54,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:54,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:00:54,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:54,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:54,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:54,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:54,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:54,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:54,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:54,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:54,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:54,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:54,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:00:54,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:54,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:54,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:54,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:00:54,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:55,108 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:00:55,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804680169] [2020-10-13 06:00:55,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:55,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:55,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506908176] [2020-10-13 06:00:55,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:55,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:55,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:55,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:55,110 INFO L87 Difference]: Start difference. First operand 593 states and 681 transitions. Second operand 13 states. [2020-10-13 06:00:55,803 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-13 06:00:56,030 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-13 06:00:56,289 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:00:56,552 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:00:57,120 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:00:57,405 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2020-10-13 06:00:57,675 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2020-10-13 06:00:58,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:58,106 INFO L93 Difference]: Finished difference Result 1184 states and 1408 transitions. [2020-10-13 06:00:58,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:00:58,109 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 233 [2020-10-13 06:00:58,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:58,112 INFO L225 Difference]: With dead ends: 1184 [2020-10-13 06:00:58,112 INFO L226 Difference]: Without dead ends: 610 [2020-10-13 06:00:58,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:00:58,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-10-13 06:00:58,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 608. [2020-10-13 06:00:58,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-10-13 06:00:58,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 697 transitions. [2020-10-13 06:00:58,135 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 697 transitions. Word has length 233 [2020-10-13 06:00:58,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:58,138 INFO L479 AbstractCegarLoop]: Abstraction has 608 states and 697 transitions. [2020-10-13 06:00:58,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:58,139 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 697 transitions. [2020-10-13 06:00:58,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-13 06:00:58,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:58,145 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:58,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:00:58,145 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:58,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:58,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1991588938, now seen corresponding path program 1 times [2020-10-13 06:00:58,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:58,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204045634] [2020-10-13 06:00:58,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:58,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:58,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:58,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:58,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:58,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:00,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-10-13 06:01:00,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:01:00,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2408 [2020-10-13 06:01:00,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:00,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:00,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:01:00,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:01:00,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:00,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:00,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:00,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:00,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:00,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:00,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:00,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:00,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:00,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:00,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:00,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:00,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:00,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:01:00,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:00,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:01:00,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:00,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:00,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:00,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:00,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:00,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:01:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:00,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:00,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:01:00,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:00,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:01:00,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:00,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:00,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:00,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:00,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:00,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:01:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:00,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:00,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:01:00,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:00,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 06:01:00,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:00,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:00,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:00,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:01:00,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:00,977 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 06:01:00,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204045634] [2020-10-13 06:01:00,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:00,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:00,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778638801] [2020-10-13 06:01:00,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:00,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:00,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:00,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:00,980 INFO L87 Difference]: Start difference. First operand 608 states and 697 transitions. Second operand 5 states. [2020-10-13 06:01:02,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:02,015 INFO L93 Difference]: Finished difference Result 1236 states and 1473 transitions. [2020-10-13 06:01:02,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:02,016 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-10-13 06:01:02,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:02,019 INFO L225 Difference]: With dead ends: 1236 [2020-10-13 06:01:02,019 INFO L226 Difference]: Without dead ends: 271 [2020-10-13 06:01:02,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:02,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-13 06:01:02,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-13 06:01:02,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-13 06:01:02,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 302 transitions. [2020-10-13 06:01:02,036 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 302 transitions. Word has length 235 [2020-10-13 06:01:02,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:02,036 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 302 transitions. [2020-10-13 06:01:02,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:02,036 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 302 transitions. [2020-10-13 06:01:02,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-13 06:01:02,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:02,038 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:02,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:01:02,039 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:02,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:02,039 INFO L82 PathProgramCache]: Analyzing trace with hash -248841038, now seen corresponding path program 1 times [2020-10-13 06:01:02,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:02,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [660145804] [2020-10-13 06:01:02,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:02,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:02,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:02,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:02,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:03,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:03,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:06,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:06,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-10-13 06:01:06,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:01:06,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4147 [2020-10-13 06:01:06,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:06,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:06,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:01:06,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:01:06,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:06,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:06,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:06,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:06,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:06,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:06,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:06,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:06,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:06,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:06,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:06,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:06,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:06,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:06,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:06,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:06,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:06,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:01:06,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:06,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:06,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:06,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:06,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:06,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:06,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:06,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:06,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:06,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:06,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:06,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:06,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:06,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:06,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:06,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:06,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:06,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:06,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:06,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:06,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:06,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:06,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:06,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:06,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:06,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:01:06,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:07,003 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:01:07,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [660145804] [2020-10-13 06:01:07,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:07,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:01:07,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308835391] [2020-10-13 06:01:07,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:01:07,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:07,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:01:07,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:01:07,005 INFO L87 Difference]: Start difference. First operand 271 states and 302 transitions. Second operand 14 states. [2020-10-13 06:01:07,659 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2020-10-13 06:01:07,900 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 93 [2020-10-13 06:01:08,165 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2020-10-13 06:01:08,412 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2020-10-13 06:01:08,650 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 90 [2020-10-13 06:01:09,062 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-13 06:01:09,433 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:01:09,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:09,897 INFO L93 Difference]: Finished difference Result 551 states and 646 transitions. [2020-10-13 06:01:09,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:01:09,898 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 246 [2020-10-13 06:01:09,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:09,900 INFO L225 Difference]: With dead ends: 551 [2020-10-13 06:01:09,900 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:01:09,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:01:09,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:01:09,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:01:09,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:01:09,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 383 transitions. [2020-10-13 06:01:09,911 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 383 transitions. Word has length 246 [2020-10-13 06:01:09,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:09,912 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 383 transitions. [2020-10-13 06:01:09,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:01:09,912 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 383 transitions. [2020-10-13 06:01:09,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-13 06:01:09,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:09,914 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:09,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:01:09,915 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:09,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:09,915 INFO L82 PathProgramCache]: Analyzing trace with hash -19147137, now seen corresponding path program 1 times [2020-10-13 06:01:09,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:09,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676409731] [2020-10-13 06:01:09,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:10,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:10,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 06:01:10,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:10,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-13 06:01:10,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:10,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:10,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-13 06:01:10,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:01:10,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:10,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:10,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:10,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:10,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:10,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:10,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:10,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:10,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:10,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:10,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:10,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:10,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:10,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:10,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:10,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:01:10,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:10,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:10,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:10,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:10,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:10,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:10,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:10,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:10,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:10,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:01:10,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:10,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:10,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:10,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:10,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:10,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:10,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:10,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:10,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:10,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:10,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:10,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:10,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:10,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:10,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:01:10,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:10,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:10,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:10,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:10,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:10,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 06:01:10,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:10,722 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 132 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-13 06:01:10,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676409731] [2020-10-13 06:01:10,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:10,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:01:10,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967168807] [2020-10-13 06:01:10,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:01:10,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:10,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:01:10,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:10,724 INFO L87 Difference]: Start difference. First operand 346 states and 383 transitions. Second operand 6 states. [2020-10-13 06:01:11,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:11,570 INFO L93 Difference]: Finished difference Result 708 states and 817 transitions. [2020-10-13 06:01:11,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:11,571 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 258 [2020-10-13 06:01:11,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:11,574 INFO L225 Difference]: With dead ends: 708 [2020-10-13 06:01:11,574 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:01:11,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:01:11,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:01:11,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:01:11,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:01:11,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 381 transitions. [2020-10-13 06:01:11,586 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 381 transitions. Word has length 258 [2020-10-13 06:01:11,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:11,587 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 381 transitions. [2020-10-13 06:01:11,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:01:11,587 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 381 transitions. [2020-10-13 06:01:11,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-10-13 06:01:11,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:11,589 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:11,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:01:11,589 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:11,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:11,590 INFO L82 PathProgramCache]: Analyzing trace with hash 468779355, now seen corresponding path program 1 times [2020-10-13 06:01:11,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:11,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [420257465] [2020-10-13 06:01:11,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:11,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:11,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:13,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:13,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-13 06:01:13,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:13,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1458 [2020-10-13 06:01:13,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:13,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:13,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:01:13,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 06:01:13,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:13,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:13,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:13,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:13,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:13,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:13,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:13,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:13,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:13,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:13,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:13,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:13,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:13,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:13,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:13,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:13,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:13,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:01:13,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:13,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:13,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:13,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:13,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:13,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:13,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:13,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:13,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:13,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:13,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:01:13,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:13,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:13,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:13,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:13,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:13,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:13,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:13,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:13,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:13,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:13,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:13,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:13,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:13,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:13,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:13,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:13,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:13,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:13,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:13,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:13,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:13,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:13,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:13,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:13,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:13,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:01:13,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:13,786 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 135 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-13 06:01:13,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [420257465] [2020-10-13 06:01:13,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:13,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:13,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991532547] [2020-10-13 06:01:13,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:13,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:13,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:13,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:13,788 INFO L87 Difference]: Start difference. First operand 346 states and 381 transitions. Second operand 13 states. [2020-10-13 06:01:14,348 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:01:14,677 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 06:01:14,976 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-10-13 06:01:15,298 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2020-10-13 06:01:15,561 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2020-10-13 06:01:15,936 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-13 06:01:16,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:16,233 INFO L93 Difference]: Finished difference Result 698 states and 802 transitions. [2020-10-13 06:01:16,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:01:16,234 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 261 [2020-10-13 06:01:16,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:16,237 INFO L225 Difference]: With dead ends: 698 [2020-10-13 06:01:16,237 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:01:16,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:16,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:01:16,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:01:16,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:01:16,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 460 transitions. [2020-10-13 06:01:16,249 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 460 transitions. Word has length 261 [2020-10-13 06:01:16,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:16,250 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 460 transitions. [2020-10-13 06:01:16,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:16,250 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 460 transitions. [2020-10-13 06:01:16,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-10-13 06:01:16,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:16,252 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:16,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:01:16,253 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:16,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:16,253 INFO L82 PathProgramCache]: Analyzing trace with hash -170750753, now seen corresponding path program 1 times [2020-10-13 06:01:16,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:16,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633686186] [2020-10-13 06:01:16,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:16,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:16,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-13 06:01:16,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:16,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-10-13 06:01:16,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:16,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:16,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:01:16,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:01:16,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:16,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:16,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:16,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:16,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:16,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:16,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:16,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:16,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:16,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:16,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:16,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:16,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:16,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:16,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:16,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:01:16,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:16,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:16,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:16,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:16,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:16,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:16,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:01:16,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:16,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:16,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:16,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:16,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:16,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:16,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:16,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:16,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:16,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:16,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:16,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:16,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:16,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:16,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:16,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:16,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:16,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:16,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:01:16,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:16,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:01:16,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:16,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:16,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:16,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:01:16,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:17,109 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 137 proven. 4 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 06:01:17,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633686186] [2020-10-13 06:01:17,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:17,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:01:17,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701117455] [2020-10-13 06:01:17,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:01:17,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:17,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:01:17,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:17,111 INFO L87 Difference]: Start difference. First operand 418 states and 460 transitions. Second operand 6 states. [2020-10-13 06:01:18,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:18,037 INFO L93 Difference]: Finished difference Result 851 states and 970 transitions. [2020-10-13 06:01:18,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:18,037 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 263 [2020-10-13 06:01:18,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:18,041 INFO L225 Difference]: With dead ends: 851 [2020-10-13 06:01:18,041 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:01:18,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:01:18,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:01:18,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:01:18,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:01:18,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 458 transitions. [2020-10-13 06:01:18,053 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 458 transitions. Word has length 263 [2020-10-13 06:01:18,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:18,054 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 458 transitions. [2020-10-13 06:01:18,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:01:18,054 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 458 transitions. [2020-10-13 06:01:18,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-10-13 06:01:18,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:18,056 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:18,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:01:18,057 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:18,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:18,057 INFO L82 PathProgramCache]: Analyzing trace with hash 65278136, now seen corresponding path program 1 times [2020-10-13 06:01:18,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:18,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61205643] [2020-10-13 06:01:18,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:18,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:18,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:18,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:18,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:18,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-10-13 06:01:18,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:18,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 775 [2020-10-13 06:01:18,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:18,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:18,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:01:18,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:01:18,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:19,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:19,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:19,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:19,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:19,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:19,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:19,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:19,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:19,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:19,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:19,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:19,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:19,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:19,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:19,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:01:19,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:19,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:19,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:19,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:19,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:19,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:19,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:19,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:19,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:19,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:19,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:19,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:19,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:19,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:19,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:19,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:19,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:19,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:19,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:19,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:19,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:19,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:19,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:19,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:19,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:19,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:19,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:19,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:19,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:19,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:19,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:19,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:19,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:19,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:19,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:19,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:19,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:19,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:19,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:19,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:19,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:19,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:01:19,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:19,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:01:19,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:19,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:01:19,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:19,362 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-13 06:01:19,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61205643] [2020-10-13 06:01:19,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:19,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:19,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616810054] [2020-10-13 06:01:19,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:19,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:19,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:19,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:19,365 INFO L87 Difference]: Start difference. First operand 418 states and 458 transitions. Second operand 5 states. [2020-10-13 06:01:20,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:20,188 INFO L93 Difference]: Finished difference Result 849 states and 963 transitions. [2020-10-13 06:01:20,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:20,189 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2020-10-13 06:01:20,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:20,192 INFO L225 Difference]: With dead ends: 849 [2020-10-13 06:01:20,192 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:01:20,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:20,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:01:20,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:01:20,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:01:20,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 456 transitions. [2020-10-13 06:01:20,205 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 456 transitions. Word has length 281 [2020-10-13 06:01:20,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:20,205 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 456 transitions. [2020-10-13 06:01:20,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:20,205 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 456 transitions. [2020-10-13 06:01:20,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-10-13 06:01:20,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:20,208 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:20,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:01:20,208 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:20,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:20,208 INFO L82 PathProgramCache]: Analyzing trace with hash -384548437, now seen corresponding path program 1 times [2020-10-13 06:01:20,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:20,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747539941] [2020-10-13 06:01:20,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-10-13 06:01:20,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:20,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-13 06:01:20,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:20,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:01:20,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:01:20,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:20,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:20,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:20,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:20,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:20,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:20,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:20,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:01:20,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:20,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:20,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 06:01:20,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:20,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:01:20,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:20,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:20,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-13 06:01:20,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:20,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:20,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:20,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:20,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:20,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:20,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:20,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:20,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:01:20,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:20,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 06:01:20,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:20,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:20,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:01:20,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:21,065 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 154 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-13 06:01:21,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747539941] [2020-10-13 06:01:21,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:21,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:21,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111224041] [2020-10-13 06:01:21,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:21,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:21,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:21,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:21,067 INFO L87 Difference]: Start difference. First operand 418 states and 456 transitions. Second operand 5 states. [2020-10-13 06:01:21,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:21,965 INFO L93 Difference]: Finished difference Result 853 states and 962 transitions. [2020-10-13 06:01:21,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:21,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2020-10-13 06:01:21,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:21,969 INFO L225 Difference]: With dead ends: 853 [2020-10-13 06:01:21,969 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:01:21,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:21,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:01:21,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:01:21,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:01:21,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 454 transitions. [2020-10-13 06:01:21,980 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 454 transitions. Word has length 280 [2020-10-13 06:01:21,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:21,980 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 454 transitions. [2020-10-13 06:01:21,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:21,981 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 454 transitions. [2020-10-13 06:01:21,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-10-13 06:01:21,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:21,983 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:21,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:01:21,983 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:21,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:21,984 INFO L82 PathProgramCache]: Analyzing trace with hash 135268846, now seen corresponding path program 1 times [2020-10-13 06:01:21,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:21,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794354199] [2020-10-13 06:01:21,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:22,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:22,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:22,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:23,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:23,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-13 06:01:23,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:23,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1429 [2020-10-13 06:01:23,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:23,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:23,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:01:23,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:01:23,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:23,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:23,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:23,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:23,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:23,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:23,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:23,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:23,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:23,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:23,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:23,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:23,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:23,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:23,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:23,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:23,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:23,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:01:23,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:23,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:23,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:23,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:23,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:23,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:23,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:23,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:23,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:23,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:23,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:23,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:23,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:23,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:23,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:23,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:23,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:23,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:23,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:23,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:23,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:23,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:23,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:23,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:23,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:23,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:23,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:23,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:23,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:23,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:23,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:23,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:23,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:01:23,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:23,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:01:23,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:01:23,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:24,160 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-10-13 06:01:24,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794354199] [2020-10-13 06:01:24,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:24,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:24,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784092501] [2020-10-13 06:01:24,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:24,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:24,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:24,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:24,162 INFO L87 Difference]: Start difference. First operand 418 states and 454 transitions. Second operand 13 states. [2020-10-13 06:01:24,749 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-13 06:01:25,003 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:01:25,362 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:01:25,637 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:01:25,972 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:01:26,309 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:01:26,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:26,595 INFO L93 Difference]: Finished difference Result 835 states and 937 transitions. [2020-10-13 06:01:26,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:01:26,596 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 290 [2020-10-13 06:01:26,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:26,599 INFO L225 Difference]: With dead ends: 835 [2020-10-13 06:01:26,600 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:01:26,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:26,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:01:26,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:01:26,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:01:26,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:01:26,612 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 290 [2020-10-13 06:01:26,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:26,613 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:01:26,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:26,613 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:01:26,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-13 06:01:26,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:26,616 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:26,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:01:26,616 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:26,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:26,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1297345575, now seen corresponding path program 1 times [2020-10-13 06:01:26,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:26,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711974979] [2020-10-13 06:01:26,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:26,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:26,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-10-13 06:01:27,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:27,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 806 [2020-10-13 06:01:27,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:27,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-13 06:01:27,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:01:27,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:27,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:27,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:27,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:27,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:27,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:27,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:27,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:27,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:01:27,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:27,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:27,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:27,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:27,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:27,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:27,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:01:27,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:27,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:27,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:27,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:27,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:27,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:27,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:27,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:27,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:27,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:27,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:27,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 06:01:27,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:27,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:01:27,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:27,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:27,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:27,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:01:27,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 173 proven. 4 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2020-10-13 06:01:27,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711974979] [2020-10-13 06:01:27,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:27,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:27,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944630201] [2020-10-13 06:01:27,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:27,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:27,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:27,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:27,864 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 5 states. [2020-10-13 06:01:28,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:28,736 INFO L93 Difference]: Finished difference Result 984 states and 1109 transitions. [2020-10-13 06:01:28,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:28,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 299 [2020-10-13 06:01:28,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:28,740 INFO L225 Difference]: With dead ends: 984 [2020-10-13 06:01:28,741 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:01:28,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:28,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:01:28,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:01:28,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:01:28,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:01:28,754 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 299 [2020-10-13 06:01:28,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:28,754 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:01:28,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:28,754 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:01:28,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-13 06:01:28,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:28,757 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:28,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:01:28,757 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:28,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:28,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1558330954, now seen corresponding path program 1 times [2020-10-13 06:01:28,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:28,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333324801] [2020-10-13 06:01:28,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:28,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:29,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:29,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:29,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-13 06:01:29,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:29,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 620 [2020-10-13 06:01:29,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:01:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:01:29,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:29,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:29,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:29,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:29,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:29,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:29,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:29,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:29,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:29,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:29,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:29,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:29,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:29,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:29,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:29,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:29,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:29,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:01:29,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:29,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:29,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:29,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:29,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:29,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:29,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:29,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:29,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:29,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:29,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:29,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:29,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:29,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:29,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:29,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:29,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:29,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:29,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:29,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:29,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:29,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:29,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:29,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:29,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:29,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:29,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:29,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:29,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:29,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:29,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:29,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:29,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:29,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:29,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:29,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:29,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:29,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:29,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:01:29,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:29,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:01:29,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:29,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:29,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:29,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:01:29,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-13 06:01:29,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333324801] [2020-10-13 06:01:29,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:29,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:29,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241808241] [2020-10-13 06:01:29,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:29,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:29,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:29,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:29,917 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 5 states. [2020-10-13 06:01:30,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:30,787 INFO L93 Difference]: Finished difference Result 978 states and 1098 transitions. [2020-10-13 06:01:30,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:30,788 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 304 [2020-10-13 06:01:30,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:30,790 INFO L225 Difference]: With dead ends: 978 [2020-10-13 06:01:30,791 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:01:30,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:30,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:01:30,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:01:30,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:01:30,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 525 transitions. [2020-10-13 06:01:30,808 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 525 transitions. Word has length 304 [2020-10-13 06:01:30,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:30,808 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 525 transitions. [2020-10-13 06:01:30,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:30,809 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 525 transitions. [2020-10-13 06:01:30,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-13 06:01:30,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:30,812 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:30,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:01:30,812 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:30,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:30,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1150938006, now seen corresponding path program 1 times [2020-10-13 06:01:30,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:30,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204631067] [2020-10-13 06:01:30,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:30,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:31,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:31,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:32,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:32,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 328 [2020-10-13 06:01:32,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:32,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1824 [2020-10-13 06:01:32,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:32,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:32,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-13 06:01:32,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:01:32,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:33,079 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:01:33,243 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-10-13 06:01:33,388 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2020-10-13 06:01:33,517 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2020-10-13 06:01:33,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:33,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:33,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:33,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:33,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:33,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:33,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:33,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:33,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:33,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:33,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:33,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:33,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:33,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:33,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:33,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:33,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:33,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:33,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:33,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:33,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:33,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:33,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:33,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:33,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:33,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:01:33,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:33,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:33,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:33,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:33,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:33,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:33,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:33,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:33,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:33,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:33,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:33,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:33,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:33,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:33,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:33,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:33,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:33,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:33,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:33,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:33,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:33,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:33,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:33,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:33,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:33,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:33,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:33,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:33,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:33,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:33,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:01:33,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:33,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:01:33,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:33,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:33,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:33,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 06:01:33,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:34,114 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 183 proven. 5 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-10-13 06:01:34,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204631067] [2020-10-13 06:01:34,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:34,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:34,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767627700] [2020-10-13 06:01:34,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:34,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:34,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:34,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:34,116 INFO L87 Difference]: Start difference. First operand 483 states and 525 transitions. Second operand 13 states. [2020-10-13 06:01:34,769 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-13 06:01:34,943 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:01:35,359 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:01:35,727 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:01:36,114 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:01:36,448 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:01:36,947 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:01:37,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:37,463 INFO L93 Difference]: Finished difference Result 962 states and 1072 transitions. [2020-10-13 06:01:37,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:01:37,464 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 310 [2020-10-13 06:01:37,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:37,466 INFO L225 Difference]: With dead ends: 962 [2020-10-13 06:01:37,466 INFO L226 Difference]: Without dead ends: 545 [2020-10-13 06:01:37,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:01:37,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-13 06:01:37,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2020-10-13 06:01:37,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:01:37,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 589 transitions. [2020-10-13 06:01:37,480 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 589 transitions. Word has length 310 [2020-10-13 06:01:37,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:37,481 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 589 transitions. [2020-10-13 06:01:37,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:37,481 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 589 transitions. [2020-10-13 06:01:37,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-13 06:01:37,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:37,484 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:37,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:01:37,485 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:37,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:37,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1620224307, now seen corresponding path program 1 times [2020-10-13 06:01:37,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:37,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [822749153] [2020-10-13 06:01:37,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:37,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:37,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:38,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:38,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-13 06:01:38,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:38,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 857 [2020-10-13 06:01:38,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:38,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:38,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:01:38,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:01:38,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:38,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:38,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:38,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:38,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:38,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:38,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:38,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:38,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:38,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:38,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:38,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:38,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:38,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:38,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:38,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:38,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:38,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:38,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:38,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:38,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:38,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:38,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:38,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:38,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:38,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:38,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:38,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:38,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:38,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:38,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:38,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:38,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:38,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:38,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:38,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:38,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:38,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:38,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:38,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:38,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:38,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:38,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:38,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:38,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:38,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:38,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:38,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:38,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:38,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:38,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:38,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:38,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:38,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:38,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:01:38,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:38,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:01:38,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:38,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:38,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:38,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:38,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:38,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:01:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:38,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:38,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:38,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:01:38,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:38,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:38,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:38,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:38,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:38,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:01:38,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:38,835 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-13 06:01:38,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [822749153] [2020-10-13 06:01:38,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:38,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:01:38,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210460782] [2020-10-13 06:01:38,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:01:38,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:38,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:01:38,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:38,837 INFO L87 Difference]: Start difference. First operand 539 states and 589 transitions. Second operand 6 states. [2020-10-13 06:01:39,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:39,700 INFO L93 Difference]: Finished difference Result 1088 states and 1221 transitions. [2020-10-13 06:01:39,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:39,708 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 315 [2020-10-13 06:01:39,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:39,710 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:01:39,710 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:01:39,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:01:39,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:01:39,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-13 06:01:39,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:01:39,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 587 transitions. [2020-10-13 06:01:39,724 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 587 transitions. Word has length 315 [2020-10-13 06:01:39,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:39,724 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 587 transitions. [2020-10-13 06:01:39,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:01:39,725 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 587 transitions. [2020-10-13 06:01:39,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-10-13 06:01:39,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:39,727 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:39,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:01:39,728 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:39,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:39,728 INFO L82 PathProgramCache]: Analyzing trace with hash -872091825, now seen corresponding path program 1 times [2020-10-13 06:01:39,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:39,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687212703] [2020-10-13 06:01:39,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:39,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:40,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:40,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:40,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-13 06:01:40,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:40,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-10-13 06:01:40,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:40,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:40,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:01:40,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:01:40,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:40,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:40,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:40,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:40,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:40,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:40,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:40,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:40,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:40,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:40,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:40,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:40,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:40,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:40,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:40,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:40,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:40,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:40,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:40,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:40,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:40,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:40,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:40,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:40,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:40,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:40,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:40,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:40,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:40,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:40,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:40,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:40,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:40,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:40,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:40,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:40,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:40,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:40,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:40,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:40,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:40,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:40,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:40,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:40,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:40,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:40,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:40,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:40,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:01:40,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:40,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 06:01:40,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:40,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:40,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:40,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:01:40,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:40,718 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-13 06:01:40,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687212703] [2020-10-13 06:01:40,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:40,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:40,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858671871] [2020-10-13 06:01:40,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:40,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:40,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:40,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:40,720 INFO L87 Difference]: Start difference. First operand 539 states and 587 transitions. Second operand 5 states. [2020-10-13 06:01:41,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:41,554 INFO L93 Difference]: Finished difference Result 1097 states and 1224 transitions. [2020-10-13 06:01:41,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:41,555 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 319 [2020-10-13 06:01:41,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:41,557 INFO L225 Difference]: With dead ends: 1097 [2020-10-13 06:01:41,557 INFO L226 Difference]: Without dead ends: 481 [2020-10-13 06:01:41,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:41,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-13 06:01:41,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2020-10-13 06:01:41,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 06:01:41,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 526 transitions. [2020-10-13 06:01:41,570 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 526 transitions. Word has length 319 [2020-10-13 06:01:41,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:41,570 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 526 transitions. [2020-10-13 06:01:41,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:41,571 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 526 transitions. [2020-10-13 06:01:41,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-13 06:01:41,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:41,573 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:41,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:01:41,574 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:41,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:41,574 INFO L82 PathProgramCache]: Analyzing trace with hash -545654929, now seen corresponding path program 1 times [2020-10-13 06:01:41,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:41,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124985088] [2020-10-13 06:01:41,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:41,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:41,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:42,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:42,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:44,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:44,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 348 [2020-10-13 06:01:44,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:01:44,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2778 [2020-10-13 06:01:44,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:44,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:44,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-13 06:01:44,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:01:44,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:44,849 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-10-13 06:01:45,087 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 52 [2020-10-13 06:01:45,379 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 53 [2020-10-13 06:01:45,650 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 50 [2020-10-13 06:01:45,908 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 46 [2020-10-13 06:01:46,160 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 43 [2020-10-13 06:01:46,384 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 38 [2020-10-13 06:01:46,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:46,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:46,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:46,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:46,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:46,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:46,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:46,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:46,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:46,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:46,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:46,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:46,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:46,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:46,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:46,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:46,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:46,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:46,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:46,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:46,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:46,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:46,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:46,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:46,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:46,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:46,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:46,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:46,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:46,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:46,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:46,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:46,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:46,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:46,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:46,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:46,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:46,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:46,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:46,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:46,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:46,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:46,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:46,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:46,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:46,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:46,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:46,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:46,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:46,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:01:46,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:46,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:46,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:46,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:46,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:46,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:46,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:46,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:01:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:46,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:46,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:46,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 06:01:46,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:46,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:01:46,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:46,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:46,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:46,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:01:46,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:46,855 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 200 proven. 6 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-10-13 06:01:46,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124985088] [2020-10-13 06:01:46,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:46,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:46,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378196341] [2020-10-13 06:01:46,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:46,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:46,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:46,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:46,857 INFO L87 Difference]: Start difference. First operand 481 states and 526 transitions. Second operand 13 states. [2020-10-13 06:01:47,363 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:01:47,574 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 06:01:47,962 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 117 [2020-10-13 06:01:48,333 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-13 06:01:48,676 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-10-13 06:01:49,150 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 108 [2020-10-13 06:01:49,560 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 103 [2020-10-13 06:01:49,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:49,882 INFO L93 Difference]: Finished difference Result 969 states and 1090 transitions. [2020-10-13 06:01:49,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:01:49,883 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 328 [2020-10-13 06:01:49,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:49,886 INFO L225 Difference]: With dead ends: 969 [2020-10-13 06:01:49,886 INFO L226 Difference]: Without dead ends: 496 [2020-10-13 06:01:49,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:01:49,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-13 06:01:49,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2020-10-13 06:01:49,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:01:49,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:01:49,899 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 328 [2020-10-13 06:01:49,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:49,899 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:01:49,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:49,899 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:01:49,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-13 06:01:49,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:49,902 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-13 06:01:49,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 06:01:49,902 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:49,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:49,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1830780380, now seen corresponding path program 1 times [2020-10-13 06:01:49,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:49,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534466828] [2020-10-13 06:01:49,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:50,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:50,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:50,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:50,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:50,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 349 [2020-10-13 06:01:50,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:50,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 994 [2020-10-13 06:01:50,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:50,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:50,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:01:50,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:01:50,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:51,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:51,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:51,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:51,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:51,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:51,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:51,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:51,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:51,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:51,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:51,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:51,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:51,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:51,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:51,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:51,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:51,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:01:51,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:51,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:51,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:51,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:51,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:51,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:51,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:51,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:51,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:51,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:51,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:51,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:51,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:51,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:51,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:51,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:51,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:51,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:51,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:51,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:51,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:51,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:51,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:51,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:51,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:51,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:51,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:51,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:51,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:51,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:51,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:51,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:51,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:51,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:51,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:51,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:51,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:01:51,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:51,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 06:01:51,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:51,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:51,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:51,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:01:51,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:51,376 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 204 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:01:51,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534466828] [2020-10-13 06:01:51,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:51,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:51,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193302143] [2020-10-13 06:01:51,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:51,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:51,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:51,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:51,377 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 5 states. [2020-10-13 06:01:52,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:52,246 INFO L93 Difference]: Finished difference Result 980 states and 1104 transitions. [2020-10-13 06:01:52,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:52,247 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 331 [2020-10-13 06:01:52,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:52,250 INFO L225 Difference]: With dead ends: 980 [2020-10-13 06:01:52,250 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:01:52,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:52,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:01:52,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:01:52,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:01:52,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:01:52,263 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 331 [2020-10-13 06:01:52,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:52,263 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:01:52,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:52,263 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:01:52,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-10-13 06:01:52,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:52,266 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:01:52,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 06:01:52,266 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:52,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:52,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1047797753, now seen corresponding path program 1 times [2020-10-13 06:01:52,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:52,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56608335] [2020-10-13 06:01:52,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:52,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:52,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:52,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:52,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:55,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:55,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-10-13 06:01:55,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:01:55,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3328 [2020-10-13 06:01:55,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:55,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:55,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 06:01:55,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:01:55,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:55,973 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2020-10-13 06:01:56,115 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2020-10-13 06:01:56,311 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 44 [2020-10-13 06:01:56,482 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 41 [2020-10-13 06:01:56,658 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 39 [2020-10-13 06:01:56,844 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 37 [2020-10-13 06:01:57,016 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 35 [2020-10-13 06:01:57,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:57,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:57,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:57,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:57,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:57,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:57,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:57,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:57,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:57,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:57,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:57,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:57,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:57,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:57,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:57,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:57,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:57,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:57,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:57,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:57,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:57,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:57,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:57,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:57,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:57,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:57,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:57,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:57,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:57,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:57,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:57,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:57,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:57,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:57,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:57,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:57,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:57,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:57,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:57,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:57,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:57,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:57,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:57,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:57,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:57,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:57,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:57,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:57,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:57,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:57,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:57,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:57,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:01:57,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:57,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:57,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:57,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:57,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:57,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:57,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:57,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:01:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:57,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:57,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:57,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:01:57,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:57,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:01:57,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:01:57,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:57,458 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 205 proven. 6 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-13 06:01:57,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56608335] [2020-10-13 06:01:57,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:57,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:57,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63014851] [2020-10-13 06:01:57,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:57,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:57,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:57,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:57,460 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 13 states. [2020-10-13 06:01:57,952 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-10-13 06:01:58,107 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-13 06:01:58,257 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 06:01:58,640 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2020-10-13 06:01:58,853 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-10-13 06:01:59,140 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2020-10-13 06:01:59,493 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 94 [2020-10-13 06:01:59,788 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 93 [2020-10-13 06:02:00,114 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2020-10-13 06:02:00,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:00,452 INFO L93 Difference]: Finished difference Result 956 states and 1072 transitions. [2020-10-13 06:02:00,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:02:00,453 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 333 [2020-10-13 06:02:00,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:00,457 INFO L225 Difference]: With dead ends: 956 [2020-10-13 06:02:00,457 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:02:00,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:02:00,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:02:00,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2020-10-13 06:02:00,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:02:00,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 591 transitions. [2020-10-13 06:02:00,472 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 591 transitions. Word has length 333 [2020-10-13 06:02:00,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:00,473 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 591 transitions. [2020-10-13 06:02:00,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:02:00,473 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 591 transitions. [2020-10-13 06:02:00,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-13 06:02:00,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:00,476 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:00,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 06:02:00,477 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:00,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:00,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1533703685, now seen corresponding path program 1 times [2020-10-13 06:02:00,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:00,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631176049] [2020-10-13 06:02:00,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:00,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:00,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:00,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:00,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 354 [2020-10-13 06:02:02,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:02:02,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2079 [2020-10-13 06:02:02,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:02,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:02:02,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:02:02,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:02,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:02,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:02,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:02,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:02,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:02,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:02,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:02,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:02,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:02,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:02,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:02,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:02,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:02,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:02,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:02,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:02,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:02,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:02,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:02,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:02:02,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:02,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:02,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:02,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:02,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:02,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:02,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:02,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:02,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:02,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:02,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:02,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:02,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:02,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:02,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:02,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:02:02,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:02,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:02,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:02,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:02,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:02,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:02:02,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:02,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:02:02,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:02,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:02,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:02,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:02,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:02:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:02,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:02,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:02,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:02:02,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:02,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:02:02,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:02,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:02,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:02,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:02:02,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:03,026 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 206 proven. 6 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2020-10-13 06:02:03,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631176049] [2020-10-13 06:02:03,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:03,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:03,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127839927] [2020-10-13 06:02:03,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:03,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:03,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:03,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:03,028 INFO L87 Difference]: Start difference. First operand 537 states and 591 transitions. Second operand 5 states. [2020-10-13 06:02:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:03,826 INFO L93 Difference]: Finished difference Result 1083 states and 1222 transitions. [2020-10-13 06:02:03,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:03,827 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 334 [2020-10-13 06:02:03,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:03,830 INFO L225 Difference]: With dead ends: 1083 [2020-10-13 06:02:03,830 INFO L226 Difference]: Without dead ends: 537 [2020-10-13 06:02:03,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:03,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-13 06:02:03,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2020-10-13 06:02:03,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:02:03,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 588 transitions. [2020-10-13 06:02:03,841 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 588 transitions. Word has length 334 [2020-10-13 06:02:03,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:03,841 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 588 transitions. [2020-10-13 06:02:03,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:03,841 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 588 transitions. [2020-10-13 06:02:03,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-10-13 06:02:03,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:03,844 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-13 06:02:03,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 06:02:03,844 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:03,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:03,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1791576224, now seen corresponding path program 1 times [2020-10-13 06:02:03,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:03,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175069410] [2020-10-13 06:02:03,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:03,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:04,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:04,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:05,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-10-13 06:02:05,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:02:05,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1186 [2020-10-13 06:02:05,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:05,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:05,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 06:02:05,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 06:02:05,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:05,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:05,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:05,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:05,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:02:05,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:05,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:05,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:05,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:05,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:05,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:05,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:05,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:05,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:05,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:05,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:05,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:05,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:05,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:05,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:05,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:05,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:05,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:05,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:05,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:05,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:05,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:05,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:05,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:05,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:05,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:05,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:05,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:05,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:05,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:05,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:05,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:05,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:05,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:05,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:05,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:05,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:05,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:05,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:05,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:05,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:05,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:05,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:05,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:05,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:02:05,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:05,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 06:02:05,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:05,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:05,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:05,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:02:05,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:05,526 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 206 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:02:05,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175069410] [2020-10-13 06:02:05,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:05,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:02:05,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666373397] [2020-10-13 06:02:05,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:02:05,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:05,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:02:05,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:05,528 INFO L87 Difference]: Start difference. First operand 537 states and 588 transitions. Second operand 6 states. [2020-10-13 06:02:06,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:06,341 INFO L93 Difference]: Finished difference Result 1085 states and 1217 transitions. [2020-10-13 06:02:06,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:06,342 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 333 [2020-10-13 06:02:06,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:06,345 INFO L225 Difference]: With dead ends: 1085 [2020-10-13 06:02:06,345 INFO L226 Difference]: Without dead ends: 514 [2020-10-13 06:02:06,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:02:06,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-13 06:02:06,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-13 06:02:06,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-13 06:02:06,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 562 transitions. [2020-10-13 06:02:06,357 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 562 transitions. Word has length 333 [2020-10-13 06:02:06,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:06,358 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 562 transitions. [2020-10-13 06:02:06,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:02:06,358 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 562 transitions. [2020-10-13 06:02:06,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2020-10-13 06:02:06,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:02:06,361 INFO L422 BasicCegarLoop]: trace histogram [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, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:02:06,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 06:02:06,361 INFO L427 AbstractCegarLoop]: === Iteration 32 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:02:06,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:02:06,362 INFO L82 PathProgramCache]: Analyzing trace with hash 335958451, now seen corresponding path program 1 times [2020-10-13 06:02:06,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:02:06,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393628129] [2020-10-13 06:02:06,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:02:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:06,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:06,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:07,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 375 [2020-10-13 06:02:07,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:02:07,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 752 [2020-10-13 06:02:07,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:07,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:02:07,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-13 06:02:07,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:02:07,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:07,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:02:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:07,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:07,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:02:07,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:07,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:07,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:07,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:07,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:07,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:07,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:07,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:02:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:07,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:07,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:02:07,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:07,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:02:07,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:07,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:07,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:07,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:07,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:07,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:02:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:07,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:07,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:02:07,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:07,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:02:07,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:07,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:07,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:07,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:07,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:07,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:02:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:07,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:07,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:02:07,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:07,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:02:07,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:07,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:07,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:07,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:07,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:07,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:02:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:07,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:07,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:02:07,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:07,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:02:07,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:07,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:07,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:07,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:07,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:07,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:02:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:07,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:07,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:02:07,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:07,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:02:07,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:07,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:02:07,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:07,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:02:07,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:07,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:02:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:02:07,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:02:07,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:02:07,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:02:07,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:02:07,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:02:07,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:02:07,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:02:07,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:02:07,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:02:07,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:02:07,691 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2020-10-13 06:02:07,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393628129] [2020-10-13 06:02:07,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:02:07,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:02:07,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177695694] [2020-10-13 06:02:07,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:02:07,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:02:07,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:02:07,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:02:07,693 INFO L87 Difference]: Start difference. First operand 514 states and 562 transitions. Second operand 5 states. [2020-10-13 06:02:08,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:02:08,303 INFO L93 Difference]: Finished difference Result 897 states and 993 transitions. [2020-10-13 06:02:08,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:02:08,303 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 355 [2020-10-13 06:02:08,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:02:08,304 INFO L225 Difference]: With dead ends: 897 [2020-10-13 06:02:08,304 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:02:08,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:02:08,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:02:08,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:02:08,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:02:08,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:02:08,307 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 355 [2020-10-13 06:02:08,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:02:08,307 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:02:08,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:02:08,307 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:02:08,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:02:08,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-13 06:02:08,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:02:09,021 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 184 [2020-10-13 06:02:09,156 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 150 [2020-10-13 06:02:09,322 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 52 [2020-10-13 06:02:17,303 WARN L193 SmtUtils]: Spent 7.97 s on a formula simplification. DAG size of input: 363 DAG size of output: 262 [2020-10-13 06:02:20,078 WARN L193 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 194 DAG size of output: 156 [2020-10-13 06:02:22,004 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 160 DAG size of output: 121 [2020-10-13 06:02:22,008 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:02:22,008 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-13 06:02:22,008 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:02:22,009 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:02:22,009 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:02:22,009 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,009 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,009 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,009 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,009 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,010 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,010 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:02:22,010 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:02:22,010 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:02:22,010 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:02:22,010 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:02:22,010 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:02:22,010 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:02:22,011 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:02:22,011 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:02:22,011 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:02:22,011 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,011 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,011 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,012 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,012 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,012 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,012 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:02:22,012 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:02:22,012 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:02:22,012 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:02:22,012 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:02:22,013 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:02:22,013 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:02:22,013 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:02:22,013 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:02:22,013 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:02:22,013 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:02:22,013 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515) no Hoare annotation was computed. [2020-10-13 06:02:22,013 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:02:22,013 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:02:22,013 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:02:22,013 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:02:22,014 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,014 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,014 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,014 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,014 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,014 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:02:22,014 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:02:22,014 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:02:22,014 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:02:22,015 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:02:22,015 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:02:22,015 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:02:22,015 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:02:22,015 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:02:22,015 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,015 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,015 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,015 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,016 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,016 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:02:22,016 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:02:22,016 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:02:22,016 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:02:22,016 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:02:22,016 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:02:22,016 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:02:22,017 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:02:22,017 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:02:22,017 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:02:22,017 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:02:22,017 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:02:22,017 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:02:22,017 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,017 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,017 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,017 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,018 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,018 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:02:22,018 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:02:22,018 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:02:22,018 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:02:22,018 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:02:22,018 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:02:22,018 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:02:22,019 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:02:22,019 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:02:22,019 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,019 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,019 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,019 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,019 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,019 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,019 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:02:22,019 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,020 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:02:22,020 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:02:22,020 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:02:22,020 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:02:22,020 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:02:22,020 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:02:22,020 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:02:22,020 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:02:22,020 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:02:22,020 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:02:22,021 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:02:22,021 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:02:22,021 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:02:22,021 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,021 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,021 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,021 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,021 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,021 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:02:22,022 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:02:22,022 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:02:22,022 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:02:22,022 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:02:22,022 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:02:22,022 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:02:22,022 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:02:22,022 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,022 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,023 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,023 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,023 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,023 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:02:22,023 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:02:22,023 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:02:22,023 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:02:22,023 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:02:22,024 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:02:22,024 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:02:22,024 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:02:22,024 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:02:22,024 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:02:22,025 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse38 (= |old(~a21~0)| 1)) (.cse26 (= ~a16~0 |old(~a16~0)|)) (.cse29 (= |old(~a20~0)| 1)) (.cse30 (= |old(~a17~0)| 1)) (.cse59 (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1)))) (.cse55 (not (= |calculate_output_#in~input| 3))) (.cse56 (not (= |calculate_output_#in~input| 2))) (.cse57 (not (= |calculate_output_#in~input| 4))) (.cse58 (not (= |calculate_output_#in~input| 5))) (.cse60 (not (= |calculate_output_#in~input| 6))) (.cse32 (= ~a8~0 15)) (.cse42 (<= ~a16~0 4)) (.cse43 (= ~a8~0 |old(~a8~0)|)) (.cse44 (<= 4 ~a16~0)) (.cse40 (<= ~a21~0 1)) (.cse45 (<= 1 ~a21~0)) (.cse31 (= |old(~a7~0)| 1)) (.cse18 (= 14 ~a8~0)) (.cse19 (= 5 ~a16~0)) (.cse61 (= ~a21~0 |old(~a21~0)|)) (.cse25 (= ~a7~0 |old(~a7~0)|)) (.cse15 (= ~a17~0 |old(~a17~0)|)) (.cse16 (= ~a21~0 1)) (.cse17 (= ~a20~0 |old(~a20~0)|)) (.cse27 (= ~a8~0 13)) (.cse33 (= ~a16~0 4))) (let ((.cse14 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse12 (and .cse25 .cse15 .cse16 .cse17 .cse27 .cse33)) (.cse37 (and .cse25 .cse15 .cse61 .cse17 .cse27 .cse33)) (.cse46 (not (<= 14 |old(~a8~0)|))) (.cse49 (not (<= |old(~a8~0)| 14))) (.cse3 (and .cse25 .cse15 .cse16 .cse17 .cse18 .cse19)) (.cse1 (not .cse31)) (.cse10 (not (<= |old(~a7~0)| 0))) (.cse39 (not (<= |old(~a21~0)| 1))) (.cse51 (and (<= 1 ~a7~0) .cse15 .cse17 .cse42 .cse43 .cse44 .cse40 .cse45 (<= ~a7~0 1))) (.cse50 (not (<= 1 |old(~a7~0)|))) (.cse47 (not (<= 1 |old(~a21~0)|))) (.cse28 (and .cse25 .cse15 .cse16 .cse17 .cse32 .cse19)) (.cse4 (not (= 5 |old(~a16~0)|))) (.cse7 (not (= 0 |old(~a17~0)|))) (.cse54 (not (< 0 |old(~a7~0)|))) (.cse41 (not (<= 4 |old(~a16~0)|))) (.cse65 (not (< 0 |old(~a17~0)|))) (.cse62 (not (<= |old(~a8~0)| 13))) (.cse52 (not (<= |old(~a7~0)| 1))) (.cse48 (not (<= |old(~a16~0)| 4))) (.cse66 (not (<= |old(~a17~0)| 1))) (.cse63 (not (< 12 |old(~a8~0)|))) (.cse53 (not (<= |old(~a20~0)| 1))) (.cse64 (not (< 0 |old(~a20~0)|))) (.cse34 (and .cse55 .cse56 .cse57 (not (= |calculate_output_#in~input| 1)) .cse58 .cse60)) (.cse36 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) .cse59)) (.cse20 (not (<= |old(~a17~0)| 0))) (.cse21 (and .cse25 .cse15 .cse16 .cse17 .cse32 .cse33)) (.cse23 (not (<= |old(~a20~0)| 0))) (.cse9 (not .cse30)) (.cse0 (not (= 14 |old(~a8~0)|))) (.cse11 (not .cse29)) (.cse24 (not (= 6 |old(~a16~0)|))) (.cse35 (and .cse25 .cse15 .cse16 .cse17 .cse26 .cse32)) (.cse2 (not (= 0 |old(~a20~0)|))) (.cse22 (not (= 15 |old(~a8~0)|))) (.cse8 (not (= |old(~a8~0)| 13))) (.cse67 (= ~a7~0 0)) (.cse5 (not .cse38)) (.cse6 (not (= ~a12~0 8))) (.cse68 (not (= |old(~a7~0)| 0))) (.cse13 (not (= 4 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse8 .cse9 .cse10 .cse11 .cse12 .cse5 .cse6 .cse13) (or .cse0 .cse14 .cse2 (not (= |old(~a7~0)| |old(~a20~0)|)) (and .cse15 .cse16 .cse17 .cse18 .cse19 (= ~a20~0 ~a7~0)) .cse4 .cse5 .cse6) (or .cse1 .cse20 .cse21 .cse22 .cse5 .cse6 .cse23 .cse13) (or .cse8 .cse9 .cse10 .cse24 (and .cse25 .cse15 .cse16 .cse17 .cse26 .cse27) .cse11 .cse5 .cse6) (or .cse28 .cse14 .cse1 .cse2 .cse4 .cse22 .cse5 .cse6) (or .cse8 .cse29 .cse30 .cse5 .cse12 .cse6 .cse13 .cse31) (or .cse11 (and .cse25 .cse15 .cse17 .cse32 .cse33 (= ~a21~0 ~a20~0)) (not (= |old(~a20~0)| |old(~a21~0)|)) (and (not (< |old(~a20~0)| |old(~a7~0)|)) (not (<= (+ |old(~a7~0)| 1) |old(~a20~0)|))) .cse34 .cse22 .cse6 .cse13 .cse7) (or .cse9 .cse29 .cse21 .cse34 .cse22 .cse5 .cse6 .cse13 .cse31) (or .cse24 .cse35 .cse11 .cse30 .cse34 .cse22 .cse5 .cse6 .cse31) (or .cse8 .cse9 .cse36 .cse1 .cse37 .cse2 .cse38 .cse6 .cse13) (or .cse0 .cse10 .cse39 .cse11 (and .cse25 .cse15 .cse17 .cse18 .cse40 .cse33 (<= ~a20~0 ~a21~0)) .cse20 (not (<= |old(~a20~0)| |old(~a21~0)|)) .cse6 .cse13) (or .cse8 .cse1 .cse37 .cse11 .cse38 .cse34 .cse6 .cse13 .cse7) (or .cse41 (and .cse25 .cse15 .cse17 .cse42 .cse43 .cse44 .cse40 .cse45) .cse46 .cse10 .cse39 .cse47 .cse48 .cse49 .cse20 .cse6 .cse23) (or .cse41 .cse46 .cse39 .cse50 .cse47 .cse51 .cse48 .cse52 .cse49 .cse20 .cse6 .cse23) (or .cse9 .cse29 .cse28 .cse4 .cse34 .cse22 .cse5 .cse6 .cse31) (or (and (not (<= |old(~a21~0)| 0)) (not (<= 2 |old(~a21~0)|))) .cse52 .cse20 .cse53 .cse54 (not (<= |old(~a16~0)| 6)) (not (< 5 |old(~a16~0)|)) (and .cse55 .cse56 .cse57 .cse58 .cse59 .cse60) (and .cse25 .cse15 (< 12 ~a8~0) .cse61 .cse17 .cse26 (<= ~a8~0 13)) .cse62 .cse63 .cse6 .cse64) (or .cse0 .cse1 .cse11 .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse8 .cse9 (not (= 0 |old(~a21~0)|)) (and .cse25 .cse15 .cse17 .cse27 (= ~a21~0 0) .cse19) .cse1 .cse11 .cse4 .cse34 .cse6) (or .cse65 (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) .cse10 .cse39 .cse36 (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) .cse47 (and .cse25 .cse15 .cse17 .cse26 .cse40 .cse45 (<= ~a8~0 15) (<= 15 ~a8~0)) .cse66 .cse6) (or .cse39 (not (<= 1 |old(~a17~0)|)) .cse51 .cse52 .cse48 (not (<= 13 |old(~a8~0)|)) .cse66 (not (<= 1 |old(~a20~0)|)) .cse53 .cse41 .cse50 .cse47 .cse62 .cse6) (or .cse28 .cse36 .cse4 .cse22 .cse5 .cse6 .cse31 .cse7) (or (and .cse15 .cse25 .cse61 .cse17 .cse26 .cse43) (and (or .cse54 .cse41 .cse65 .cse36 .cse62 .cse52 .cse48 .cse66 .cse63 .cse6 .cse53 .cse64) (or .cse24 .cse20 .cse34 .cse22 .cse5 .cse6 .cse31))) (or .cse36 .cse20 .cse21 .cse22 .cse5 .cse6 .cse23 .cse13) (or .cse9 .cse0 .cse11 (and .cse15 .cse16 .cse17 .cse18 .cse33 .cse67) .cse5 .cse6 .cse68 .cse13) (or (not (= |old(~a17~0)| |old(~a21~0)|)) .cse24 .cse35 .cse2 (and .cse55 .cse56 (not (= |calculate_output_#in~input| |old(~a16~0)|)) .cse57 .cse58 (not (= |calculate_output_#in~input| |old(~a21~0)|))) .cse22 .cse5 .cse6 .cse31) (or .cse8 (and .cse15 .cse16 .cse17 .cse27 .cse33 .cse67) (not (= |old(~a7~0)| |old(~a17~0)|)) .cse5 .cse6 .cse68 .cse13)))) [2020-10-13 06:02:22,025 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:02:22,025 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,025 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,025 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,025 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,025 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:02:22,026 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,026 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,026 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:02:22,026 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:02:22,026 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:02:22,026 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:02:22,026 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:02:22,026 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:02:22,026 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:02:22,026 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:02:22,026 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:02:22,026 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:02:22,026 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:02:22,026 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:02:22,026 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,027 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,027 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,027 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,027 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,027 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:02:22,027 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,027 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:02:22,027 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:02:22,027 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:02:22,027 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:02:22,027 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:02:22,027 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:02:22,027 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:02:22,027 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:02:22,027 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:02:22,028 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:02:22,028 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:02:22,028 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:02:22,028 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:02:22,028 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:02:22,028 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,028 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,028 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,028 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,028 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,028 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:02:22,028 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:02:22,028 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:02:22,028 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:02:22,029 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:02:22,029 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:02:22,029 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:02:22,029 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:02:22,029 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:02:22,029 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:02:22,029 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:02:22,029 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:02:22,029 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a20~0) (<= 1 ~a17~0) (<= ~a16~0 5) (= ~a12~0 8) (<= ~a7~0 0) (<= ~a21~0 1) (<= ~a20~0 1) (<= ~a17~0 1) (<= 1 ~a21~0) (<= 5 ~a16~0) (<= ~a8~0 15) (<= 15 ~a8~0)) [2020-10-13 06:02:22,029 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:02:22,029 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:02:22,029 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 1)) (not (<= 1 |old(~a20~0)|)) (not (<= |old(~a20~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a21~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) (<= 15 ~a8~0)) (not (= ~a12~0 8))) [2020-10-13 06:02:22,029 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:02:22,030 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse23 (= 5 main_~input~0)) (.cse29 (= 6 main_~input~0)) (.cse24 (= main_~input~0 4)) (.cse25 (= 3 main_~input~0)) (.cse26 (= 2 main_~input~0)) (.cse18 (= ~a7~0 1)) (.cse22 (= ~a17~0 1)) (.cse2 (= ~a21~0 1)) (.cse16 (= ~a20~0 1))) (let ((.cse1 (= ~a20~0 ~a17~0)) (.cse5 (= ~a20~0 ~a7~0)) (.cse15 (not .cse16)) (.cse21 (not .cse2)) (.cse0 (= ~a20~0 0)) (.cse17 (= ~a17~0 0)) (.cse6 (= ~a16~0 6)) (.cse11 (not .cse22)) (.cse9 (= ~a8~0 15)) (.cse14 (not .cse18)) (.cse10 (<= ~a7~0 0)) (.cse8 (<= ~a17~0 0)) (.cse31 (<= ~a21~0 1)) (.cse32 (<= 1 ~a21~0)) (.cse19 (<= ~a20~0 0)) (.cse3 (= 14 ~a8~0)) (.cse13 (= ~a16~0 4)) (.cse27 (= ~a7~0 0)) (.cse28 (<= 13 ~a8~0)) (.cse33 (<= 1 ~a20~0)) (.cse34 (<= 1 ~a17~0)) (.cse35 (<= ~a16~0 4)) (.cse20 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse36 (<= 4 ~a16~0)) (.cse37 (<= ~a17~0 1)) (.cse38 (<= ~a20~0 1)) (.cse39 (<= ~a7~0 1)) (.cse30 (<= ~a8~0 13)) (.cse7 (or .cse23 .cse29 .cse24 .cse25 (= main_~input~0 1) .cse26)) (.cse12 (= ~a8~0 13)) (.cse4 (= 5 ~a16~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (<= 5 |old(~a16~0)|)) (and .cse2 .cse6 .cse7 .cse8 .cse9 (or (< 1 ~a7~0) .cse10)) (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 1)) (not (<= 1 |old(~a20~0)|)) (and .cse2 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse7 .cse9 .cse16 .cse13 (= ~a21~0 ~a20~0) (not .cse5) .cse17) (and .cse2 .cse18 .cse8 .cse9 .cse13 .cse19) (and .cse2 .cse20 .cse9 .cse14 .cse4 .cse17) (and .cse0 .cse1 .cse2 .cse18 .cse9 .cse4) (and .cse0 .cse18 .cse20 .cse21 .cse12 .cse13 .cse22) (and .cse2 .cse6 .cse10 .cse12 .cse16 .cse22) (not (<= 1 |old(~a21~0)|)) (and .cse0 (= ~a21~0 ~a17~0) (or .cse23 (= ~a16~0 main_~input~0) .cse24 .cse25 (= ~a21~0 main_~input~0) .cse26) .cse2 .cse6 .cse9 .cse14) (and .cse2 .cse20 .cse8 .cse9 .cse13 .cse19) (and .cse2 .cse12 .cse13 (= ~a17~0 ~a7~0) .cse27) (not (= ~a12~0 8)) (and .cse2 .cse7 .cse9 .cse13 .cse14 .cse15 .cse22) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (and .cse28 .cse6 .cse8 .cse21 .cse16 (or .cse23 (= ~a20~0 main_~input~0) .cse29 .cse24 .cse25 .cse26) .cse5 .cse30) (and .cse2 .cse18 .cse3 .cse16 .cse4 .cse17) (and .cse2 .cse7 .cse9 .cse14 .cse4 .cse15 .cse22) (and .cse18 .cse7 .cse21 .cse12 .cse16 .cse13 .cse17) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) .cse20 (= ~a16~0 |old(~a16~0)|) .cse31 .cse32 (<= ~a8~0 15) (<= 15 ~a8~0)) (and .cse0 .cse2 .cse18 .cse3 .cse4 .cse17) (and .cse2 .cse6 .cse7 .cse11 .cse9 .cse16 .cse14) (not (<= |old(~a20~0)| 1)) (and .cse28 .cse33 .cse34 .cse35 .cse36 .cse37 .cse31 .cse38 .cse32 .cse39 .cse30) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse3 .cse8 .cse10 .cse16 .cse13 .cse31 (<= ~a20~0 ~a21~0)) (and (<= 14 ~a8~0) (<= ~a8~0 14) .cse35 .cse8 .cse36 .cse31 .cse32 .cse39 .cse19) (and .cse2 .cse3 .cse16 .cse13 .cse27 .cse22) (and (<= 1 ~a7~0) .cse28 .cse33 .cse34 .cse35 .cse20 .cse36 .cse37 .cse38 .cse39 .cse30) (and .cse18 .cse7 .cse12 (= ~a21~0 0) .cse16 .cse4 .cse22)))) [2020-10-13 06:02:22,030 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:02:22,030 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:02:22,030 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse7 (= ~a21~0 1)) (.cse2 (= ~a20~0 1)) (.cse0 (= ~a7~0 1)) (.cse4 (= ~a17~0 1))) (let ((.cse6 (= ~a20~0 ~a17~0)) (.cse9 (= ~a20~0 ~a7~0)) (.cse15 (<= 13 ~a8~0)) (.cse18 (<= ~a8~0 13)) (.cse10 (= ~a16~0 6)) (.cse19 (not .cse4)) (.cse5 (= ~a20~0 0)) (.cse12 (not .cse0)) (.cse3 (= 5 ~a16~0)) (.cse20 (not .cse2)) (.cse11 (= ~a8~0 15)) (.cse17 (not .cse7)) (.cse1 (= ~a8~0 13)) (.cse21 (= ~a17~0 0)) (.cse13 (<= ~a7~0 0)) (.cse22 (<= ~a16~0 4)) (.cse16 (<= ~a17~0 0)) (.cse23 (<= 4 ~a16~0)) (.cse26 (<= ~a21~0 1)) (.cse27 (<= 1 ~a21~0)) (.cse24 (<= ~a7~0 1)) (.cse28 (<= ~a20~0 0)) (.cse8 (= 14 ~a8~0)) (.cse14 (= ~a16~0 4)) (.cse25 (= ~a7~0 0))) (or (and .cse0 .cse1 (= ~a21~0 0) .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7 .cse8 .cse3 .cse9) (not (<= 5 |old(~a16~0)|)) (and .cse5 (= ~a21~0 ~a17~0) .cse7 .cse10 .cse11 .cse12) (not (<= |old(~a21~0)| 1)) (and .cse7 .cse13 .cse1 .cse2 .cse14 .cse4) (not (<= 1 |old(~a17~0)|)) (and .cse15 .cse10 .cse16 .cse17 .cse2 .cse9 .cse18) (not (<= |old(~a17~0)| 1)) (not (<= 1 |old(~a20~0)|)) (and .cse7 .cse19 .cse1 .cse14 .cse12 .cse20) (and .cse7 .cse11 .cse12 .cse3 .cse21) (and .cse7 .cse10 .cse13 .cse1 .cse2 .cse4) (and .cse5 .cse6 .cse7 .cse11 .cse3) (and .cse11 .cse2 .cse14 (= ~a21~0 ~a20~0) (not .cse9) .cse21) (not (<= 1 |old(~a21~0)|)) (and (<= 1 ~a7~0) .cse15 (<= 1 ~a20~0) (<= 1 ~a17~0) .cse22 .cse23 (<= ~a20~0 1) (<= ~a17~0 1) .cse24 .cse18) (and .cse7 .cse10 .cse16 .cse11 (or (< 1 ~a7~0) .cse13)) (and .cse7 .cse1 .cse14 (= ~a17~0 ~a7~0) .cse25) (not (= ~a12~0 8)) (and .cse5 .cse0 .cse17 .cse1 .cse14 .cse4) (and .cse7 .cse11 .cse14 .cse12 .cse20 .cse4) (not (<= |old(~a8~0)| 15)) (not (<= |old(~a7~0)| 0)) (and .cse7 .cse0 .cse8 .cse2 .cse3 .cse21) (and .cse7 .cse10 .cse19 .cse11 .cse2 .cse12) (and .cse5 .cse7 .cse0 .cse8 .cse3 .cse21) (not (<= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) .cse26 .cse27 (<= ~a8~0 15) (<= 15 ~a8~0)) (and .cse7 .cse11 .cse12 .cse3 .cse20 .cse4) (and .cse7 .cse16 .cse11 .cse14 .cse28) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse17 .cse1 .cse2 .cse14 .cse21) (not (<= 15 |old(~a8~0)|)) (and .cse8 .cse16 .cse13 .cse2 .cse14 .cse26 (<= ~a20~0 ~a21~0)) (and (<= 14 ~a8~0) (<= ~a8~0 14) .cse22 .cse16 .cse23 .cse26 .cse27 .cse24 .cse28) (and .cse7 .cse8 .cse2 .cse14 .cse25 .cse4)))) [2020-10-13 06:02:22,030 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:02:22,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:02:22 BoogieIcfgContainer [2020-10-13 06:02:22,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:02:22,066 INFO L168 Benchmark]: Toolchain (without parser) took 169075.00 ms. Allocated memory was 141.0 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 102.2 MB in the beginning and 110.9 MB in the end (delta: -8.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:02:22,067 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:02:22,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 782.02 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 163.2 MB in the end (delta: -61.2 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:02:22,068 INFO L168 Benchmark]: Boogie Preprocessor took 139.09 ms. Allocated memory is still 203.9 MB. Free memory was 163.2 MB in the beginning and 157.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-10-13 06:02:22,068 INFO L168 Benchmark]: RCFGBuilder took 1187.31 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 157.8 MB in the beginning and 167.8 MB in the end (delta: -9.9 MB). Peak memory consumption was 72.3 MB. Max. memory is 7.1 GB. [2020-10-13 06:02:22,069 INFO L168 Benchmark]: TraceAbstraction took 166961.98 ms. Allocated memory was 236.5 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 166.4 MB in the beginning and 110.9 MB in the end (delta: 55.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:02:22,071 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 782.02 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 163.2 MB in the end (delta: -61.2 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.09 ms. Allocated memory is still 203.9 MB. Free memory was 163.2 MB in the beginning and 157.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1187.31 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 157.8 MB in the beginning and 167.8 MB in the end (delta: -9.9 MB). Peak memory consumption was 72.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 166961.98 ms. Allocated memory was 236.5 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 166.4 MB in the beginning and 110.9 MB in the end (delta: 55.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 515]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((a7 == 1 && a8 == 13) && a21 == 0) && a20 == 1) && 5 == a16) && a17 == 1) || (((((a20 == 0 && a20 == a17) && a21 == 1) && 14 == a8) && 5 == a16) && a20 == a7)) || !(5 <= \old(a16))) || (((((a20 == 0 && a21 == a17) && a21 == 1) && a16 == 6) && a8 == 15) && !(a7 == 1))) || !(\old(a21) <= 1)) || (((((a21 == 1 && a7 <= 0) && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 1)) || !(1 <= \old(a17))) || ((((((13 <= a8 && a16 == 6) && a17 <= 0) && !(a21 == 1)) && a20 == 1) && a20 == a7) && a8 <= 13)) || !(\old(a17) <= 1)) || !(1 <= \old(a20))) || (((((a21 == 1 && !(a17 == 1)) && a8 == 13) && a16 == 4) && !(a7 == 1)) && !(a20 == 1))) || ((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && a17 == 0)) || (((((a21 == 1 && a16 == 6) && a7 <= 0) && a8 == 13) && a20 == 1) && a17 == 1)) || ((((a20 == 0 && a20 == a17) && a21 == 1) && a8 == 15) && 5 == a16)) || (((((a8 == 15 && a20 == 1) && a16 == 4) && a21 == a20) && !(a20 == a7)) && a17 == 0)) || !(1 <= \old(a21))) || (((((((((1 <= a7 && 13 <= a8) && 1 <= a20) && 1 <= a17) && a16 <= 4) && 4 <= a16) && a20 <= 1) && a17 <= 1) && a7 <= 1) && a8 <= 13)) || ((((a21 == 1 && a16 == 6) && a17 <= 0) && a8 == 15) && (1 < a7 || a7 <= 0))) || ((((a21 == 1 && a8 == 13) && a16 == 4) && a17 == a7) && a7 == 0)) || !(a12 == 8)) || (((((a20 == 0 && a7 == 1) && !(a21 == 1)) && a8 == 13) && a16 == 4) && a17 == 1)) || (((((a21 == 1 && a8 == 15) && a16 == 4) && !(a7 == 1)) && !(a20 == 1)) && a17 == 1)) || !(\old(a8) <= 15)) || !(\old(a7) <= 0)) || (((((a21 == 1 && a7 == 1) && 14 == a8) && a20 == 1) && 5 == a16) && a17 == 0)) || (((((a21 == 1 && a16 == 6) && !(a17 == 1)) && a8 == 15) && a20 == 1) && !(a7 == 1))) || (((((a20 == 0 && a21 == 1) && a7 == 1) && 14 == a8) && 5 == a16) && a17 == 0)) || !(\old(a20) <= 1)) || ((((((a7 == \old(a7) && a17 == \old(a17)) && a16 == \old(a16)) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || (((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && !(a20 == 1)) && a17 == 1)) || ((((a21 == 1 && a17 <= 0) && a8 == 15) && a16 == 4) && a20 <= 0)) || !(\old(a16) <= 5)) || (((((a7 == 1 && !(a21 == 1)) && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 0)) || !(15 <= \old(a8))) || ((((((14 == a8 && a17 <= 0) && a7 <= 0) && a20 == 1) && a16 == 4) && a21 <= 1) && a20 <= a21)) || ((((((((14 <= a8 && a8 <= 14) && a16 <= 4) && a17 <= 0) && 4 <= a16) && a21 <= 1) && 1 <= a21) && a7 <= 1) && a20 <= 0)) || (((((a21 == 1 && 14 == a8) && a20 == 1) && a16 == 4) && a7 == 0) && a17 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 153.1s, OverallIterations: 32, TraceHistogramMax: 7, AutomataDifference: 65.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 824 SDtfs, 9422 SDslu, 1184 SDs, 0 SdLazy, 22923 SolverSat, 1288 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 806 GetRequests, 365 SyntacticMatches, 24 SemanticMatches, 417 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1022 ImplicationChecksByTransitivity, 46.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=608occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 32 MinimizatonAttempts, 232 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 214 PreInvPairs, 270 NumberOfFragments, 3660 HoareAnnotationTreeSize, 214 FomulaSimplifications, 1791 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3217 FormulaSimplificationTreeSizeReductionInter, 12.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 79.6s InterpolantComputationTime, 8024 NumberOfCodeBlocks, 8024 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 7992 ConstructedInterpolants, 0 QuantifiedInterpolants, 20857219 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 32 InterpolantComputations, 1 PerfectInterpolantSequences, 8321/8434 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...